The ans is C
you have perpendicular angles so 60 is equal to the total of the equation... doing the whole math X= 20
5x⁴ - 3x³ + 6x) - (3x³ + 11x² - 8x)<span>
</span>Expand the second bracket by multiplying throughout by -1
5x⁴ - 3x³ + 6x - <span>3x³ - 11x² + 8x
</span>
Group like terms and simplify
5x⁴ - 3x³ - 3x³ - 11x² + 6x <span>+ 8x
</span>5x⁴ - 6x³ - <span>11x² + 14x</span>
Step-by-step explanation:
f=6×9
aubstituting f=6×9
6×9×16=b
864=b
the answer is -3/2 and -11/2
