Question

write one zero of the polynomial p(x) =2x²+7x-4

Answer 1

2x^2+8x-x-4=0
2x(x+4)-1(x+4)=0
(x+4)(2x-1)=0
x=4 ,1/2
is your answer

Answer 2

2x^2 +8x-x-4=0
2x(x+4)-1(x+4)=0
(2x-1)(x+4)=0
2x-1=0
X=1/2- one zero of polynomial
X+4 =0
X=-4 - second zero of polynomial