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TiliK225 [7]
3 years ago
6

Reduce −2 + b2 by 7 + b2.

Mathematics
2 answers:
il63 [147K]3 years ago
8 0
To simplify (-2+b^2)-(7+b^2), first distribute the -1 to both terms in the second parenthesis. 
-2+b^2-7-b^2
Combine like terms.
-9 (1-1=0, so the b^2 is canceled out.)
(-2+b^2)-(7+b^2)=-9
Lynna [10]3 years ago
6 0

b^2-2

-b^2-7

______

-9


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