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Factor out from the expression
(7x-8) * (4x^2-x-1) over 7x-8
Reduce the fraction with 7x-8
So you’re left with 4x^2-x-1 and that will be you’re answer.
4 is the answer king have a good day
It just has to equal 90° so that they are parallel so 16x-6=90
16x=96 (add 6 to both sides)
x=6(divide by 16)