Tosia
Answered

Get the answers you need at Westonci.ca, where our expert community is always ready to help with accurate information. Get immediate answers to your questions from a wide network of experienced professionals on our Q&A platform. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

If P = a^2 + a - 1 and R = –a - 1, which expression represents P + R
a) a^2 + 2
b) a^2 - 2
c) a^2 + 2a
d) a^2 + 2a - 2


Sagot :

[tex]P=a^2+a-1;\ R=-a-1\\\\P+R=(a^2+a-1)+(-a-1)=a^2+a-1-a-1=a^2-2\\\\Answer:b)[/tex]