Here we look at squaring expressions that involve radicals because people tend to make some common mistakes while solving such expressions. Take 5 times the square root of y quantity squared, the answer here is not 5y. Here's the reason, square means to multiply something with itself so the square of 5 root y would be 5 root y into 5 root y. So 5 x 5 is 25 and under root y into under root y equals just y so the answer will be 25y.
Now take under root of (x3) being added into 7 quantity squared. This will not be x3+49. The reason for this is that you can't distribute a square over addition. Now the same principle will apply here, both under root of (x3) and 7 have to be multiplied separately to under root of (x3) added into 7 with a plus sign in the middle. It will be simplified to a three term answer with the radical still there.
How To: Square expressions involving radicals
 Hot
 Latest

How To: Remember "greater than" & "less than" symbols

How To: Find the area of a triangle when given 2 sides & angle

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Find the area of a parallelogram using geometry

How To: Do long division without a calculator

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find the Percent Given Two Numbers

How To: Calculate Faster Than a Calculator

How To: Convert between diameter and radius

How To: Find the area of an oblique triangle using formulas

How To: Calculate the height and volume of a pyramid

How To: Determine the age of a fossil using carbon14

How To: Find the formula of a piecewise function given a graph

How To: Find a missing side of a triangle, similar to another

How To: Find the Height of a Trapezoid.

How To: Solve a math probability problem with a number cube

How To: Find the area & perimeter of triangles & squares

How To: Use the ratio formula to find coordinates of a point

How To: Do long division with decimals

How To: Subtract a mixed number from a proper fraction in basic math

How To: Remember "greater than" & "less than" symbols

How To: Find the area of a triangle when given 2 sides & angle

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Find the area of a parallelogram using geometry

How To: Do long division without a calculator

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find the Percent Given Two Numbers

How To: Calculate Faster Than a Calculator

How To: Convert between diameter and radius

How To: Find the area of an oblique triangle using formulas

How To: Calculate the height and volume of a pyramid

How To: Determine the age of a fossil using carbon14

How To: Find the formula of a piecewise function given a graph

How To: Find a missing side of a triangle, similar to another

How To: Find the Height of a Trapezoid.

How To: Solve a math probability problem with a number cube

How To: Find the area & perimeter of triangles & squares

How To: Use the ratio formula to find coordinates of a point

How To: Do long division with decimals

How To: Subtract a mixed number from a proper fraction in basic math
Be the First to Comment
Share Your Thoughts