Add the polynomial expressions 5z−2z2−4z+5
and 6z2+3−7z
.(1 point)
Responses
9z2−11z+8
9 z squared minus 11 z plus 8
4z2−z+8
4 z squared minus z plus 8
11z2+z−2
11 z squared plus z minus 2
4z2−6z+8
4z2−6z+8
To simplify the expression 5z - 2z^2 - 4z + 5 + 6z^2 + 3 - 7z, combine like terms by adding or subtracting coefficients:
Combine the z^2 terms: -2z^2 + 6z^2 = 4z^2
Combine the z terms: 5z - 4z - 7z = -6z
Combine the constant terms: 5 + 3 = 8
So the simplified expression is: 4z^2 - 6z + 8.