Saved Bookmarks
| 1. |
If x cube + x square - bx + 10 is divisible by x square - 3 x + 2 find the value of a and b |
|
Answer» Answer: x3 + a x2 – bx + 10 is divisible by x2 – 3 x + 2 Factors of x2 – 3 x + 2 are (x - 1) (x - 2) HENCE, f(1) = 0 1 + a - b + 10 = 0 a - b = - 11..........(i) f(2) = 0 23 + 22 a - 2b + 10 = 0 8 + 4A - 2b = -10 4a - 2b = - 18 2a - b = -9..........(II) Subtracting (i) from (i) a - 2a - b + b = -11 + 9 -a = -2 a = 2 Consider, a - b = -11 2 - b = -11 2 + 11 = b b = 13 Step-by-step explanation: PLEASE MARK ME AS BRAINLIEST and LIKE ME PLEASE |
|