Q. Find the product. Simplify your answer.(2r+1)(−4r2+3r−1)
Multiply with Second Trinomial: We start by multiplying 2r with each term in the second trinomial:2r×(−4r2)=−8r32r×3r=6r22r×(−1)=−2r
Combine Products: Next, we multiply 1 with each term in the second trinomial:1×(−4r2)=−4r21×3r=3r1×(−1)=−1
Combine Like Terms: Now, we combine the like terms from the two sets of products:−8r3 (from 2r∗−4r2)6r2 (from 2r∗3r)−2r (from 2r∗−1)−4r2 (from 1∗−4r2)3r (from 1∗3r)2r∗−4r20 (from 2r∗−4r21)
Simplify Result: Adding the like terms together, we get:−8r3+(6r2−4r2)+(−2r+3r)−1Which simplifies to:−8r3+2r2+r−1