What number should be added to both sides of the equation to complete the square? x2 + 3x = 6 Nuw O لایا w

Question

What number should be added to both sides of the equation to complete the square?
x2 + 3x = 6
Nuw
O
لایا
w
ОО
62

in progress 0
Thanh Hà 5 years 2021-07-25T16:19:47+00:00 2 Answers 30 views 0

Answers ( )

  1. Ben
    0
    2021-07-25T16:21:36+00:00
    Reply

    Answer: Is this completing a a square?

    Step-by-step explanation:

  2. thugiang
    0
    2021-07-25T16:21:45+00:00
    Reply

    Answer:

    • 9/4

    Step-by-step explanation:

    The perfect square identity is:

    • (a + b)² = a² + 2ab + b²

    Apply to the given equation to complete the square:

    • x² + 3x = 6
    • x² + 2*x*(3/2) + (3/2² = 6 + (3/2)²
    • (x + 3/2)² = 6 + 9/4
    • (x + 3/2)² = 8 1/4

    Required number is 9/4

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