Question

w.4 add and subtract polynomials 5ek
subtract.
$(2z^{2}+8z+7)-(2z^{2}+7z+6)$
submit

Explanation:

Step1: Distribute the negative sign

$2z^2 + 8z + 7 - 2z^2 - 7z - 6$

Step2: Combine like $z^2$ terms

$(2z^2 - 2z^2) + 8z + 7 - 7z - 6 = 0z^2 + 8z + 7 - 7z - 6$

Step3: Combine like $z$ terms

$8z - 7z + 7 - 6 = z + 7 - 6$

Step4: Combine constant terms

$z + (7 - 6) = z + 1$

Answer:

$z + 1$