If (x+a) is a factor of 2x^2ax + 5x + 10 , find a
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if (x+a)
x=-a
put this value in the polynomial
2x^- 2ax + 5x + 10
2a^2 - 2a^2 - 5a +10 = 0
-5a+10=0
-5a=-10
a=10/5
a=2
x=-a
put this value in the polynomial
2x^- 2ax + 5x + 10
2a^2 - 2a^2 - 5a +10 = 0
-5a+10=0
-5a=-10
a=10/5
a=2
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