Question

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Are these the answers for the two short answer questions?

x^2 - 4x - 10 = 0
x = 2 +/- (1/2)sqrt(56) so x = 2 + sqrt(14) or x = 2 - sqrt(14)

y = x^2 + 2x - 8
Need to solve for y = 0 so:
x^2 + 2x - 8 = 0
(x + 4)(x - 2) = 0
x = -4 or x = 2
Answer = 2 - (-4) = 6 units

Answer 1

first one's right

Answer 2

the first one is correct
the second one it is correct till x =-4 or x =2, but the last sentence make no sense to me

Answer 3

Last one's right too.

Answer 4

Thanks guys

Answer 5

no probs