Solve |x + 3|= -6 O A. x= -3 and x = 9 O B. x= -3 and x = -9 O C. No solution D. x= 3 and x = -9 Need Help

Question

Solve |x + 3|= -6
O A. x= -3 and x = 9
O B. x= -3 and x = -9
O C. No solution
D. x= 3 and x = -9
Need Help

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Thiên Thanh 4 years 2021-08-06T01:23:45+00:00 1 Answers 14 views 0

Answers ( )

  1. kimcuc
    0
    2021-08-06T01:24:52+00:00
    Reply

    Answer:

    The equation has NO solution ⇒ C

    Step-by-step explanation:

    • An absolute value of a number means the value of the number without its sign
    • IxI = m, then x = m or x = -m
    • Example: I2I = 2 and I-2I = 2

    V.I.N:

    • Absolute never give a negative value
    • If the number on the other side of the equation negative then the equation has no solution

    Let us solve the question

    ∵ Ix + 3I = -6

    ∵ The right side of the equation is negative

    ∵ Absolute never give a negative value

    → By using the 2nd note above

    ∴ The equation has NO solution

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