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mojhsa [17]
3 years ago
7

Find the difference (3-13x-7x^2)-(5x^2+ 12x-10)

Mathematics
1 answer:
Nikolay [14]3 years ago
8 0
3 - 13x - 7x^2 - (5x^2 + 12x - 10)
Distributing the negative over the parentheses chamges the signs:-
= 3 - 13x - 7x^2 - 5x^2 - 12x + 10
adding like terms:-
= -12x^2 - 25x + 13  (answer).

Its B
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The ratio of the amount of time spent doing homework to the amount of time spent watching TV is 1/12.

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