Question

2 is a zero of a polynomial p(x)=2x2(Square)-3x+7a,then find 'a' value.​

Answer 1

Step-by-step explanation:

2(2)^2 -3(2) +7a =0

2x 4 -6 +7a = 0

8-6+7a = 0

2+ 7a = 0

7a = -2

a= -2/7

Answer 2

Answer:

a=-2/7

Step-by-step explanation:

${2x}^{2} - 3x + 7a = 0 \\ 2 {(2) }^{2} - 3 \times 2 + 7a = 0 \\ 2 \times 4 - 6 + 7a = 0 \\ 8 - 6 + 7a = 0 \\ 2 + 7a = 0 \\ 7a = - 2 \\ a = - 2 \div 7$