Question

If 2 is zero of the polynomoial p(x)=2x²-3x+7a then find the value of a

Answer 1

Answer:

Here's your solution....

Given,

p(x) = 2x²-3x+7a

2 is the zero of the polynomial

So, substitution

p(2) = 0

p(2) = 2(2)^2 - 3x + 7a

0 = 2(4)-3(2)+7a

0 = 8-6+7a

0 = 2+7a

-2 = 7a

-2/7 = a

-2/7 = a

The value of a is -2/7

Hope this helps you....

Answer 2

Answer:

p(2) =2(2×2) -3(2) +7a

=2×4-3×2+7a

=8-6+7a

=2+7a

-7a=2

a=-2/7