Simplify (5x3 + 7x - 8) + (2x3 – 5x2 - x + 3). Choose the standard form of the answer. O A. 7x3 + 6x - 5x2-5
B. 7x3 - 5x2 + 6x - 5
C. 7x3 - 5x2 + 6x + 5
D. 7x3 - 5x2 + 8x-5

Select the lengths in centimeters that would form a right triangle

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)