Question

II Solve the following
6. Expand the following
a) (3a + 4b + 5c)*2 using suitable identitied​

Answer 1

Answer:

9a^2+16b^2+25c^2+24ab+40bc+30ca

Step-by-step explanation:

(a+b+c+)^2=a^2+b^2+c^2+2ab+2bc+2ca

apply the formula in the question

Answer 2

Hey there!
Here's your answer!

Hope it's helpful!
-medhani