Question

7. If the polynomials x² + 2x² - 5 ax 7 and x²-a x²
- 12x + 6 leave remainder Riend R2 when divided
by x+1 and x-2 respectively and if
2 R1 + R2-6=0, find the value of a.​

Please answer my question fast
.
Please help me. I am stuck.

I will mark it as brainliest

Answer 1

P(-1)=1+2+5a+7=R1
R1=10 + 5a
Also for the next do the same and put value of R1 and R2 and you will get your answer