3 years ago

Which is the correct step below for using the grouping method to factor the following polynomial? 8x - 6 - 12x2 + 9x

Mathematics

2 answers:

IrinaVladis [17]3 years ago

4 0

8x - 6 - 12x^2 + 9x

2(4x-3)-3x(3x-3)

=> (2-3x)(3x-3)

=> 3(x-1)(2-3x)

Zepler [3.9K]3 years ago

3 0

Order from highest power to lowest
-12x^2+9x+8x-6
group
(-12x^2+9x)+(8x-6)
factor
(-3x)(4x-3)+(2)(4x-3)
undistribute
(-3x+2)(4x-3)

(4x-3)(2-3x)

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