Solve the expression using the correct order of operations. 0.75×3.2+ (9.1)2-((-2.3)-(-0.9))2

Question

Solve the expression using the correct order of operations.
0.75×3.2+ (9.1)2-((-2.3)-(-0.9))2

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Nho 3 years 2021-07-30T04:39:14+00:00 1 Answers 8 views 0

Answers ( )

  1. trucchi
    0
    2021-07-30T04:40:50+00:00
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    Answer:

    0.75 * 3.2+ (9.1)^2-((-2.3)-(-0.9))^2 = 83.25

    Step-by-step explanation:

    Given

    0.75 * 3.2+ (9.1)^2-((-2.3)-(-0.9))^2

    Required

    Solve

    Start with the bracket

    0.75 * 3.2+ (9.1)^2-((-2.3)-(-0.9))^2 = 0.75 * 3.2+ (9.1)^2-(-1.4)^2

    Evaluate all exponents

    0.75 * 3.2+ (9.1)^2-((-2.3)-(-0.9))^2 = 0.75 * 3.2+ 82.81-1.96

    Evaluate all products

    0.75 * 3.2+ (9.1)^2-((-2.3)-(-0.9))^2 = 2.4+ 82.81-1.96

    0.75 * 3.2+ (9.1)^2-((-2.3)-(-0.9))^2 = 83.25

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )