Question

On dividing polynomial 2x³+ax²+3x-5 by x-1 , the remainder is 7.Find the value of a.

Answer 1

Here is your solution,

x-1 = 0

x = 1

p(x) = 2x³ + ax² + 3x - 5

p(1) = 2×(1)³ + a×(1)² + 3×1 - 5

= 2×1 + a + 3 - 5

= 2+a+3-5

= 0 + a =7

a = 7-0

a = 7

So, the value of a is 7

Hope it helped..................

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Answer 2

here is u r correct answer my bro ...plz help me by marking me brainliest....