– 6 + \sqrt{9 – 8a} = 1−6+ 9−8a ​ =1​

Question

– 6 + \sqrt{9 – 8a} = 1−6+
9−8a

=1​

in progress 0
Minh Khuê 4 years 2021-09-04T05:50:08+00:00 1 Answers 3 views 0

Answers ( )

    0
    2021-09-04T05:51:12+00:00

    Answer:

    a = -5

    Step-by-step explanation:

    Given

    - 6 + \sqrt{9 - 8a} = 1

    Required

    Solve for a

    - 6 + \sqrt{9 - 8a} = 1

    Add 6 to both sides

    6- 6 + \sqrt{9 - 8a} = 1+6

    \sqrt{9 - 8a} = 7

    Square both sides

    ( \sqrt{9 - 8a})^2 = 7^2

    9 - 8a = 49

    Subtract 9 from both sides

    9-9 - 8a = 49-9

    - 8a = 40

    Make a the subject

    a = -\frac{40}{8}

    a = -5

Leave an answer

Browse

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