Question

If (x+a) is a factor of
$2x + 2ax - 5x + 10 find a$

Answer 1

HEY MATE HERE IS YOUR ANSWER

If x+a is the factor of f (x)
then f (x) = 2x+2ax-5x+10
x=-a
f(-a) = 2 (-a) +2a (-a) -5 (-a) +10
=
$= - 2a - 2 {a}^{2} + 5a + 10 \\ \\ 2 {a}^{2} - 3a - 10 = 0$
HOPE IT HELPS YOU

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