which expression is equivelent to (h^2+9h-1) (-4h+3) ? F. -4h^3-33h^2+31h-3 G. 4h^3 +39h^2 -23h-3 H. -4h^3-39h^2+23h+3 J.4h^3+33h^2-31h+3 please explain step by step

F

Step-by-step explanation:

(h² +  9h - 1)(-4h + 3)=(h² +  9h - 1)*-4h + [(h² +  9h - 1)*3]

= h²*(-4h) +  9h*(-4h) - 1*(-4h)  + h²*3 + 9h*3 - 1*3

= -4h³ - 36h² + 4h + 3h² + 27h - 3    {add/subtract the like terms}

= -4h³ - 33h² + 31h - 3

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

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