Question

Factorise: x²-8x+15 = 0.​

Answer 1

Answer:

3 and 5

Step-by-step explanation:

$x {}^{2} + - 8x + 15 = (x {}^{2} - 3x ) + (15 - 5x) \\ x(x - 3) - 5(x -3 ) \\ (x - 5)(x - 3) \\ x = 5 \: and \: 3$

Answer 2

Answer:

The values of x are 5and3

Step-by-step explanation:

x^2-8x+15=0

x^2-(5+3)x+15=0

x^2-5x-3x+15=0

x(x-5)-3(x-5)=0

(x-5)(x-3)=0

either, x-5=0

x=5

or, x-3=0

x=3