Question

2 x² + 7 x- 4 is what????????​

Answer 1

Answer:

2x²+7x-4

=4x²+7x-4

=11x²-4

=7x²

Answer 2

Answer:

×=1/2 ; ×= -4

Step-by-step explanation:

2x² + 7x - 4=0

2x² + 8x - x - 4=0

2x(x+4) - (x+4) =0

(2x-1) (x+4) =0

=>2x-1 =0 ; =>(x+4) =0

=> 2x =1 ; => (x +4)=0

=>[ x= 1/2 ] ; => [ x = -4 ]