Question

Plzzz help
Factorise y^2-8y+7

Answer 1

Step-by-step explanation:

y² - 7y - 1y +7

y( y- 7) + 1( y - 7)

(y-7)(y + 1)

hope u understand

Answer 2

Answer:

y=1 or y=7

Step-by-step explanation:

${y}^{2} - 8y + 7 \\ {y}^{2} - 7y - y + 7 \\ y(y - 7) - 1(y - 7) \\ (y - 1)(y - 7) \\ y - 1 = 0 \: or \: y - 7 = 0 \: \\ y = 1 \: or \: y = 7$