If A=9a^2-4ab+5b^2 B=-3a^2+2ab-b^2 Find 2A-B

Question

If A=9a^2-4ab+5b^2
B=-3a^2+2ab-b^2
Find 2A-B

in progress 0
Amelia 3 weeks 2021-10-07T13:45:05+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-07T13:46:24+00:00

    Step-by-step explanation:

    2A-B

    2(9a^2-4ab+5b^2)=2A

    18a^2-8ab+10b^2=2A

    -3a^2+2ab-b^2=B

    2A-B

    18a^2-8ab+10b^2-(-3a^2+2ab-b^2)

    18a^2-8ab+10b^2+3a^2-2ab+b^2

    21a^2-10ab+11b^2

    0
    2021-10-07T13:46:37+00:00

    Answer:

    15a^2-10ab+11b^2

    Step-by-step explanation:

    plz mark me as brainliest

Leave an answer

Browse
Browse

18:9+8+9*3-7:3-1*13 = ? ( )