ALGEBRA NATION Question 5 of 10 < Previous Question Next Question > Rewrite the expression below. -2a(a + b – 5) + 3(-5a + 2b) + b(6a

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ALGEBRA NATION Question 5 of 10 < Previous Question Next Question > Rewrite the expression below. -2a(a + b – 5) + 3(-5a + 2b) + b(6a + b – 8)

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Arya 1 week 2021-09-15T05:36:30+00:00 1 Answer 0

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    2021-09-15T05:38:23+00:00

    –2a² + 4ab – 5a – 2b + b²

    Solution:

    Given data:

    –2a(a + b – 5) + 3(–5a + 2b) + b(6a + b – 8)

    To solve this expression:

    Multiply each number or variable into the bracket.

    –2a(a + b – 5) + 3(–5a + 2b) + b(6a + b – 8)

            = –2a² – 2ab + 10a – 15a + 6b + 6ab + b² – 8b

    Arrange like terms together.      

           = –2a² – 2ab + 6ab + 10a – 15a + 6b – 8b + b²

           = –2a² + 4ab – 5a – 2b + b²

    Hence the solution is  –2a² + 4ab – 5a – 2b + b².

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45:7+7-4:2-5:5*4+35:2 =? ( )