Question

Factorise: x² + 3x - 10​

Answer 1

Answer:

(x-2)(x+5)

Step-by-step explanation:

y = (x - 2)(x + 5)

Explanation:

Y = x^2 + 3x - 10.

Find 2 numbers knowing sum (3) and product (-10).

Factor pairs of (-10) -> (-1, 10)(-2, 5). This sum is 3 = b. The 2 numbers are: -2 and 5.

y = (x - 2)(x + 5)

Answer 2

x² + 3x - 10

x²+5x-2x-10

x(x+5)-2(x+5)

(x-2) (x+5)

Hope this helps you