what quadratic expression represents (2x+5)(7-4x) a.-8x^2+6x-35 b.-8x^2-34x+35 c.-8x^2+34x-35 d.-8x^2-6x+35

Question

what quadratic expression represents (2x+5)(7-4x)

a.-8x^2+6x-35
b.-8x^2-34x+35
c.-8x^2+34x-35
d.-8x^2-6x+35

in progress 0
Khoii Minh 3 years 2021-07-23T09:57:28+00:00 2 Answers 12 views 0

Answers ( )

  1. Doris
    0
    2021-07-23T09:58:49+00:00
    Reply

    Answer 🙂

    • \sf{(2x+5)(7-4x) }
    • \sf{2x(7-4x)+5(7-4x) }
    • \sf{14x-8x^{2}+35-20x }
    • \sf{ -8x^{2}-6x+35 }

    \\\\\\

    Therefore

    • \sf{Option~ D ~is ~correct }

    \sf{ }

    \sf{ }

    \sf{ }

    \sf{ } \sf{ } \sf{ } \sf{ } \sf{ }

  2. kimcuc
    0
    2021-07-23T09:59:05+00:00
    Reply

    Answer:

    -8x² -6x + 35

    Step-by-step explanation:

    A expression is given to us and we need to find out the quadratic equation . For that Multiply the two terms of the quadratic equation. The given expression is ,

    Given expression :–

    \rm\implies ( 2x +5)( 7 - 4x )

    Multiply the terms :–

    \rm\implies 2x ( 7 - 4x )+5(7-4x)

    Simplifying the brackets :–

    \rm\implies 14x - 8x^2 + 35 - 20x

    Rearrange and simplify :–

    \rm\implies -8x^2 -6x + 35

    Therefore :–

    \rm\implies\boxed{ \rm Quadratic\ Equation \ = -8x^2 -6x + 35}

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