unknown54321 unknown54321

22-03-2017
Mathematics

contestada

factor a number,variable or expression out of the polynomial below

X(4x-5)+9(4x-5)

A) 9x(4x+5)
B)(x+9)(4x-5)
C)9x(4x-5)
D)(X+9)(4x+5)

Respuesta :

jimthompson5910 jimthompson5910

22-03-2017

Factor out the (4x-5), which is the GCF to go from
x(4x-5) + 9(4x-5)
to
(4x-5)(x+9)

Note: (4x-5)(x+9) is the same as (x+9)(4x-5). The order of the factors does not matter. You can multiply in any order.

Therefore, the final answer is choice B

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