SOLUTION: Need help on these that I have to complete today
Evaluate for a=3 and b= -4
1.a. (2b)^3
is the answer 512?
b. –ab^2(a- ab)
c. –a - b^2- 5
d. –2(ab)^2
2. Combine l
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Question 172558: Need help on these that I have to complete today
Evaluate for a=3 and b= -4
1.a. (2b)^3
is the answer 512?
b. –ab^2(a- ab)
c. –a - b^2- 5
d. –2(ab)^2
2. Combine like terms
a. –5w+9x- 8w - 4x
b. –4+5y+ (-3) +5y+4y
I believe if I can have help with these I will be able to grasp the rest of my hw. Thank you anyone for your quick reply.
Found 2 solutions by Earlsdon, Mathtut:
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
1. Evaluate for a = 3 and b = -4
a) = =
b) ==
c) =
d) ==
2. Combine like-terms.
a) =
b) =
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
1a...(2(-4))^3=(-8)^3=
:
b....(-3)(-4)^2(3-(3)(-4))=(-3)(16)(15)=
:
c....-(3)-(-4)^2-5=-3-16-5=
:
d....-2((3)(-4))^2=-2(144)=
:
2.a...-5w+9x-8w-4x.....so add the w terms and x terms together
........
b......-4+5y-3+5y+4y......combine y terms and constant terms
......
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