PLEASE HELP Answer all three of the questions below. 1. Write an equivalent expression to 2 + 3 + 5 + 6

Question

PLEASE HELP

Answer all three of the questions below.

1. Write an equivalent expression to 2 + 3 + 5 + 6 by combining like terms.

2. Find the sum of (8a – 2b – 4) and (3b − 5).

3.Write the expression in standard form: 4(2a) + 7(−4b) + (3 ∙ c ∙ 5).

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Samantha 1 week 2021-10-12T08:55:51+00:00 1 Answer 0

Answers ( )

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    2021-10-12T08:57:22+00:00

    Answer:

    a)2 + 3 + 5 + 6 = 16

    b)8a + b-9

    c)8a - 28b + 15c

    Step-by-step explanation:

    We are given the following in the question:

    1. Equivalent expression

    2 + 3 + 5 + 6

    Since all the terms are like terms, we can write,

    2 + 3 + 5 + 6 = 16

    2. Sum of given expression

    (8a - 2b - 4) \text{ and } (3b - 5)\\ (8a - 2b - 4) + (3b -5)\\= 8a -2b -4 + 3b -5\\\text{Collecting the like terms}\\8a + (-2b+3b) + (-4-5)\\= 8a + b-9

    3. Standard form of the expression

    4(2a) + 7(-4b) + (3 \times c \times 5)\\=(8a) + (-28b) + (15c)\\=8a - 28b + 15c

    which is the required standard form of the given expression.

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