Question

1.
Find the smallest number which when increased by 7 is exactly divisible by 75, 135, 189 and 252.
Find the greatest number that divides 396 exactly but divides 619 to give remainder 7.
2.​

Answer 1

Answer:

If x3+2x2+ax+b is exactly divisible by (x+a) and (x−1), then ............. This ... f(1) and f(−a) both are equal to 0 by factor theorem. ... Find the value of c in x3+4x2+cx if x+2 is the factor.