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dem82 [27]
2 years ago
15

Rút gọn (x-4) (x-3) -x(x+5) +82

Mathematics
1 answer:
WINSTONCH [101]2 years ago
5 0

Answer:

-12x + 94

Step-by-step explanation:

Simplify:

\left(x-4\right)\left(x-3\right)-x\left(x+5\right)+82

=x^2-7x+12-x\left(x+5\right)+82

=x^2-7x+12-x^2-5x+82

=x^2-x^2-7x-5x+12+82

=-7x-5x+12+82

=-7x-5x+94

=-12x+94

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