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URLOCALBADIIEE16IN
Answered

Subtract 2nd from the first
21x² - 17x , 12x² + 1​

Sagot :

EILVERBIAGEIN

Step-by-step explanation:

1 Remove parentheses.

21{x}^{2}-17x-12{x}^{2}-1

21x

2

−17x−12x

2

−1

2 Collect like terms.

(21{x}^{2}-12{x}^{2})-17x-1

(21x

2

−12x

2

)−17x−1

3 Simplify.

9{x}^{2}-17x-1

9x

2

−17x−1

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