To multiply two binomials you use FOIL (first, outer, inner, last):
(y-9)(y+10)=y*y+10y-9y-9*10=y2+y-90
correct anser is C ; y=-45
LCM(12, y9, x9, 4x6, x5) = 12y9x9
Without any equality sign they appear to be terms of an algebraic expression.
√(40 x12y9) = 6.3246√(y)* x6 *y4 or 6.3246x6y4.5 ■
If you mean: y = 9-2.5x then the slope is -2.5 and the y intercept is 9
2x-y9 = -7
The GCF is y4
correct anser is C ; y=-45
yn = 1/2n2 + 2 1/2n + 3 y9 = 1/2(9)2 + 2 1/2(9) + 3 y9 = 40 1/2 + 22 1/2 + 3 y9 = 66
LCM(12, y9, x9, 4x6, x5) = 12y9x9
y = 5.55555555...
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The GCF is y2.
The GCF is y5.
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Without any equality sign they appear to be terms of an algebraic expression.
√(40 x12y9) = 6.3246√(y)* x6 *y4 or 6.3246x6y4.5 ■