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Explain using complete math and English sentences how to find the roots ( zeroes) of the polynomial>>> x3+3x2−4x−12

Sagot :

Simplify 3x2 to 6.
3+6-4x-12
Simplify 4x-12 to -48.
3+6-(-48)
Remove parentheses
3+6+48
Simplify 3+6 to 9.
9+48
Simplify.
57
Simplify 3x2 to 6
3+6-4.
Answer 57