Question

Please help me with this √(x²-36)=8​

Answer 1

x=10

Explanation:

i) √(x^2-36) =8

First we start by squaring both sides of the equation leaving your equation to be x^2-36=64

ii)x^2-36=64

Next, we add 36 to both parts of the equation

x^2-36+36=64+36

leaving your equation to be

x^2=100

iii)x^2=100

Find the square root of both sides of the equation leaving your answer to be

√x^2=√100

= x=10

Answer 2

x = 10

Explanation:

`\sqrt{x^(2)-36 } = 8`

→ In an equation our aim is to isolate 'x' and find the value and so the first step is to square both sides to get rid of the square root

x² - 36 = 64

→ Add 36 to both sides to isolate x²

x² = 100

→ Square root both sides to isolate x

x = 10