what is (y+8)(y+9)
Hello anonymous!
what is (y+8)(y+9) ?
(y + 8) * (y + 9)
= y * y + 9y + 8y + 8 * 9
= y² + 17y +72
(y+8)(y+9) = y² + 17y +72
[If (y+8)(y+9) = 0 then is y1 = -8 and y2 = -9]
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