What is the number of solutions of 4×2 + 12x + 9 = 0? Α. 1 B. 2 C. 0 D. no real solution

Question

What is the number of solutions of 4×2 + 12x + 9 = 0?
Α. 1
B. 2
C. 0
D.
no real solution

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Thông Đạt 4 years 2021-08-29T04:56:11+00:00 1 Answers 8 views 0

Answers ( )

  1. Neala
    0
    2021-08-29T04:57:52+00:00
    Reply

    Answer:

    A

    Step-by-step explanation:

    2.1 Factoring 4×2+12x+9 The first term is, 4×2 its coefficient is 4 . The middle term is, +12x its coefficient is 12 . The last term, “the constant”, is +9 Step-1 : Multiply the coefficient of the first term by the constant 4 • 9 = 36 Step-2 : Find two factors of 36 whose sum equals the coefficient of the middle term, which is 12 .

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