Question

if X+2is G.C.D of the polynomials.(x-4)(2x(2)+x-a) and (X+1)(2x+bx-12),then value of (5a-6b) is​

Answer 1

Answer:

Step-by-step explanation:

If (x+2) is HCF of

P(x)=(x-4)(2x^2+x-a) then

P(-2)=0

(2–4)(2×4–2-a)=0

(6-a)=0

a=6

If (x+2) is HCF of

G(x)=(x+1)(2x^2-bx-12) then

G(-2)=0

(-2+1){2×4-b×(-2)-12}=0

-4–2b=0

b=-2

5a-6b=5×6–6×(-2)=30+12=42

Answer 2

Answer:

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