Question

Solve each quadratic equation. Show your work.
4x2 = 100

Answer 1

4 times 2 = 100?
is that the question?

Answer 2

4 x^2 = 100

Answer 3

yeah

Answer 4

4x^2 = 100 -- divide both sides by 4
x^2 = 100/4
x^2 = 25 --- now take the sq rt of both sides...this cancels out the ^2 on the right side.
x = sq rt 25
x = 5

check..
4(5^2) = 100
4(25) = 100
100 = 100 (correct)

so x = 5

Answer 5

oh ok thakx

Answer 6

sure thing :)