what must be subtracted from xcube 6xsquare -15x+80 so that the result is exactly division by x square +x-12
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Answer:
Step-by-step explanation:
let angle be x°
then it's complement is 5÷4x
5÷4x+x=90°
5x×1+x×4÷4=90°
9x÷4=90°
x=40°
5÷4x
5÷4×40°
50°
Check=
50°+40°=90°
Explanation:
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