Question

4. Which of the following is a factor of x2 + x - 30?
(a) x+5
(b) x + 6
(c) x-6
(d) x + 2​

Answer 1

For finding the factors we first have to factorize the expression

x² + x - 30

x² + 6x - 5x - 30

x(x+6) - 5(x+6)

(x-5)(x+6)

hence option (b) is correct, (x+6) is a factor of x²+x-30

Hope it helps

have a great day

Answer 2

Answer:

X²+X-30

x²+6x-5x-30

x(x+6)-5(x+6)

(x+6)(x-5)

The answer is b) X+6