Which expression has the factor (h + 2)? A. h2 + h − 2 B. 2h2 − 4h C. h2 + 6h + 5 D. 2h2 + h

Question

Which expression has the factor (h + 2)? A. h2 + h − 2 B. 2h2 − 4h C. h2 + 6h + 5 D. 2h2 + h

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Aubrey 3 weeks 2021-09-22T02:02:17+00:00 2 Answers 0

Answers ( )

    0
    2021-09-22T02:03:41+00:00

    Answer:

    A – just had it on a test

    Step-by-step explanation:

    0
    2021-09-22T02:04:03+00:00

    Answer:

    a – h^2 + h – 2

    Step-by-step explanation:

    To find the expression with factor h + 2, let’s solve all to be sure of the exact expression

    Let’s start from option a

    h^2 + h – 2

    Lets look for factors that will be multipled to -2h^2 and that will be added to get +h

    Let’s start from the multiple of 2 lets try

    +2 * -1 = -2

    Perfect,

    Insert the two new figures into the expression

    h^2 – h + 2h – 2

    (h^2 – h) + ( 2h – 2)

    Look for what is common to each brackets

    h (h – 1) + 2(h – 1)

    (h + 2) (h -1)

    ( h + 2) ,this makes this option the correct option

    Let’s try for the other options too

    Option b

    2h^2 – 4h

    2h( h – 2)

    This is not correct

    Option C

    h^2 + 6h + 5

    h^2 + h + 5h + 5 ( the way we did option A)

    ( h^2 + h) + (5h + 5)

    h( h + 1) + 5(h + 1)

    (h + 5)(h + 1)

    This is not correct

    Option D

    2h^2 + h

    h ( 2h + 1)

    This is also wrong

    The correct expression for the factor (h+ 2) is h^2 + h -2

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45:7+7-4:2-5:5*4+35:2 =? ( )