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brilliants [131]
3 years ago
12

What is (3a - 2b) (3a - 2b)?

Mathematics
2 answers:
Nimfa-mama [501]3 years ago
7 0

Answer:

9a^2 -12ab +4b^2

Step-by-step explanation:

Using the distributive property, you multiply 3a and 3a, which gives you 9a^2. Then you multiply 3a and -2b, which gives you -6ab. Then you multiply -2b and 3a, which gives you -6ab. And finally, you multiply -2b and -2b, which gives you +4b^2. 9a^2 -6ab -6ab +4b^2. Combine like terms (-6ab and -6ab). Then you have 9a^2 -12ab +4b^2

zysi [14]3 years ago
6 0

Answer:

9a^2-12ab+4b^2

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3 years ago
1/2r -3= 3 (4-3/2r) solve for r
s2008m [1.1K]

1/2r -3= 3 (4-3/2r) is to be solved for r.


I'll begin by making the assumptions that by 1/2r you actually meant (1/2)r and that by 3/2r you actually meant (3/2)r. When in doubt, please use parentheses to make your meaning clear.


Thus, 1/2r -3= 3 (4-3/2r) becomes (1/2)r -3= 3 (4-(3/2)r ) .

Simplify this by multiplying all 3 terms by 2. Doing this will eliminate the fractions:


r -6 = 3 (4*2-(3)r ) or r - 6 = 24 - 9r


Now expand the right side, using the distributive property of

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