Simplify the expressions and solve the equations.

Question

7x / Sqrt (x) - 8 Sqrt (x) / 2

 

Sqrt means Square root of

 

This is a fraction equation.

Answer 1

Hi Aisha,

 

You can multiply the left fraction by 2√x and the right one by x to have a common denominator.

 

If you can't see that right away, you can first multiply the first fraction by √x to make the denominator rational.

 

7x / sqrt(x) * (sqrt(x)) = 7xsqrt(x) / x

Now we have 

7xsqrt(x) / x - 8 Sqrt (x) / 2

 

make the denominators same so multiply the first fraction by 2 and the second one by x and we get

14xsqrt(x) / 2x - 8xsqrt(x) / 2x

= 6xsqrt(x) / 2x

= 3sqrt(x)

Answer 2

Hey Aisha,

 

14x / 2√x - 8x / 2√x

 

 

= 6x / 2√x

 

= 3√x

 

 You need to first find the common denominator and then simplify the exponents. Good luck with the rest of your problems.

 

 

 

regards,

 

mayuran