Question

Find the zero of polynomial 2x + 7x-4
(A) 2
(B) 3
(C)
D) - 2​

Answer 1

Answer:

Step-by-step explanation:

To find the zero of 2x2+7x−4 is same as solving the equation 2x2+7x−4=0

⇒2x2+8x−x−4=0

⇒2x(x+4)−1(x+4)=0

⇒(2x−1)(x+4)=0

⇒x=21​,−4

Therefore, option B is correct