3 years ago

Attached a phot please help!

Mathematics

1 answer:

musickatia [10]3 years ago

6 0

Answer:

-5, -18
-5x -18x
(x -3)(6x -5)

Step-by-step explanation:

a) The factors of 90 are ...

90 = (-1)(-90) = (-2)(-45) = (-3)(-30) = (-5)(-18) = (-6)(-15) = (-9)(-10)

The sums of these factors are -91, -47, -33, -23, -21, -19.

The factor pair with the sum of -23 is of interest here. Those factors are ...

-5, -18

b) -23x = -5x -18x

c) The rewritten expression is ...

6x^2 -5x -18x +15

(6x^2 -5x) -(18x -15) . . . . group into pairs

x(6x -5) -3(6x -5) . . . . . . .factor each pair

(x -3)(6x -5) . . . . . . . . . . factor out the common factor (6x -5)

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Answer:

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