Question

show that 1 by 2 is the Zero ofp(x)=2x_2+7x-4


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Answer 1

Answer:

I don't think it is

Step-by-step explanation:

p(x)= 2x-2+7x-4

p(1/2)= 2(1/2)-2 +7(1/2) -4

p = -1

Answer 2

Answer:

$= 2{x}^{2} + 7x - 4 \\ = 2 {x}^{2} + 8x - x - 4 \\ = 2 x(x + 4) - 1(x + 4) \\ = (2x - 1)(x + 4)$