Question

Solve the quadratic equation. 2x^2 = 32
A. x = ±4
B. x = 2 and x = 32
C. x = 1 and x = 16
D. x = ±2

Answer 1

What do you think you should do first?

Answer 2

Subtract and the divide?

Answer 3

Well, we need to get the variable by itself. We have,

\(2\times x^2=32\)

What do you do to cancel a multiplication?

Answer 4

I don't know. Subtract x or 32?

Answer 5

x is your variable you want it on the left hand side, to cancel out a multiplication we divide. So therefore we divide both sides by 2, what do you get?

Answer 6

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