Question

if x^3+2x^2+ax+b is divisible by x^2-x write the values of a and b

Answer 1

Answer:

use this identity a square + b square = (a+b) whole square

Step-by-step explanation:

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Answer 2

Answer:

x3 + x2 -ax + b is divisible by x - x or x(x-1)

x and (x-1) they are the factors of x + x2 -ax

+ b.

O and 1 they are the zeros of x3 + x?-ax + b.

PUTTING x = 0

(0) + -a(0) + b = 0 = b = 0

putting x = 1

(1)3 + (12 - a(1) + b = 0 1+ 1-a + b 0 2 - a + 0 = 0 a = 2

Step-by-step explanation:

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