Question

subtract 7b² + 5ab-2a²+ 13 from 5a²-3ab + 4b²-9. If you gave it with explaination I will mark you as Brainliset but.If you enter the wrong answer I will surely report you.
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Answer 1

Answer:

7a² - 3b² - 8ab -22

Step-by-step explanation:

5a² - 3ab + 4b² - 9 -(7b² + 5ab -2a² + 13)

5a² - 3ab + 4b² - 9 -7b² - 5ab + 2a² - 13

(Arrange in convenient order)

5a² + 2a² + 4b² - 7b² -3ab -5ab -9 -13

7a² - 3b² - 8ab -22

Answer 2

Answer:

3ab – 2a² – 2b² - (5a² – 7ab + 5b²) =3ab – 2a² – 2b² - 5a² + 7ab - 5b² = 10ab - 7a² - 7b²