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tatuchka [14]
3 years ago
13

(3a+b)³ please help me​

Mathematics
2 answers:
bija089 [108]3 years ago
5 0

Answer:

27a^{3} +27a^{2}b+9ab+b^{3}

Step-by-step explanation:

(3a+b)(3a+b) = 9a^{2}+6ab+b^{2}\\(9a^{2}+6ab+b^{2})(3a+b) = 27a^{3} + 27a^{2}b +9ab^{2} +b^{3}

Anton [14]3 years ago
3 0

Answer:

Step-by-step explanation:

9a^3+18a^2b+9ab^2+b^2

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Since the dimension of the scale model is fourth of dimensions of the room, divide by 4 the given dimensions.

                  new dimensions:
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The table below shows the proportional relationship between the weight of cereal, in ounces, and the number of packs of cereal:
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Jeremy can mow 4 lawns every 2 hours. At this rate, How many lawns can he mow in 7 hours.
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4m(4m-3)

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16m^2 − 12m

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