What is 7 times the sum of a squared and b minus 4 times the sum of a squared and b

Question

asked Dec 21, 2016 147k views

1 Answer

Virtually Real · Answer 1 · 2016-12-27T19:28:34+0000

The sum of a squared and b is given by

a^2+b

7 times the sum of a squared and b is given by

7(a^2+b)

while 4 times the sum of a squared and b is given by

4(a^2+b)

Therefore, 7 times the sum of a squared and b minus 4 times the sum of a squared and b is given by

7(a^2+b)-4(a^2+b)=3(a^2+b)