Question

If 2 is a zero of the polynomial
P x = 2x² _ 3x + 7 a find the value of a'?​

Answer 1

Answer:

a = -2/7

Step-by-step explanation:

$2x^{2} - 3x + 7a = 0$

Put  x = 2:

$2(2^{2} ) - 3(2) + 7a = 0$

⇒  $8 - 6 + 7a = 0$

⇒ 7a = -2

⇒ $a = \frac{-2}{7}$