2 years ago

Please help with number 20

Mathematics

1 answer:

Over [174]2 years ago

5 0

Answer:

−3−7x

=6x

−7x−3

=6x

−9x+2x−3

=3x(2x−3)+1(2x−3)

=(2x−3)(3x+1).

Then, f(x)=0⟹2x−3=0 and 3x+1=0.

Therefore, 2x=3 and 3x−−1.

That is, x=

, x=

−1

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