Math, asked by tinnigupta102, 9 months ago

5. If A = 3.x2 – 7x - 8 and B=x2-5x-4
find 2A + B.

Answers

Answered by ankit1234satpati

1

Answer:

7x² - 19x -20

Step-by-step explanation:

Given, A = 3x² - 7x -8

B = x² - 5x - 4

Therefore, 2A + B =2(3x² - 7x -8) + x² - 5x - 4

= 6x² - 14x - 16 + x² - 5x - 4 = 7x² - 19x -20

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