Question

Answer this by expanding the brackets 20 POINTS!

Answer 1

`\huge \boxed{y^2 - 16y + 63}`

`\rule[225]{225}{2}`

Explanation:

Solving for the first problem:

(y-9)(y-7)

y(y-7)-9(y-7)

y² - 7y - 9y + 63

y² - 16y + 63

`\rule[225]{225}{2}`

Answer 2

Below

Explanation:

(y - 9)(y - 7) =
`y^2-16y+63`

(2y + 2)(y + 1) =
`2y^2+4y+2`

(2y + 6)(y + 3) =
`2y^2+12y+18`

(3y + 4)(y + 5) =
`3y^2+19y+20`

(2y - 7)(y + 2) =
`2y^2-3y-14`