2x^2 + 9x + 4 = 0 PLEASE HELP! I WILL MARK AS BRAINLIEST

Question

2x^2 + 9x + 4 = 0
PLEASE HELP! I WILL MARK AS BRAINLIEST

in progress 0
Kiệt Gia 7 months 2021-07-30T04:26:30+00:00 2 Answers 3 views 0

Answers ( )

    0
    2021-07-30T04:27:59+00:00

    Answer:

    Step-by-step explanation:

    Multiply co efficient of the x^2 and the constant; which will be 8

    What can you multiply together that will give you 8 and add that give the co efficient of x, 9

    1*8 ✓

    (2x^2 +8x) + (1x + 4) = 0

    Factorise

    2x(x+4) +1(x+4) = 0

    2x+1= 0

    x+4=0

    x = -1/2 or -4

    0
    2021-07-30T04:28:26+00:00

    (2x+1)(x+4)

    calculator

Leave an answer

Browse

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