Question

factorise
x2 + 5x - 24​

Answer 1

Step-by-step explanation:

x^2+5x-24 = 0

x^2+8x-3x-24 = 0 [ Since, 8 and 3 when subtracted gives 5 and when 8 and 3 are multiplied give 24]

x(x+8) - 3(x+8) = 0

(x-3) (x+8) = 0

Therefore, x = 3 and x = -8

Answer 2

Answer:

3 ,-8 are two zeros of the polynomial

Step-by-step explanation:

${x}^{2} + 5x - 24 \\ {x}^{2} +8x - 3x - 24 \\ x(x + 8) - 3(x + 8) \\ ( x - 3)(x + 8) \\ x - 3 = 0 \: \: \: \: \: \: \: \: \: \: \: \: x + 8 = 0 \\ x = 3 \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = - 8$