Question

3. If a = -2 and b = 6, find the value of each of the

following.
ii) 6a - b
i) 2a + b
iii) 3a - 26
v) a +3ab
iv) 4ab
vi) a² + b²

Answer 1

So here if a is -2 and b is 6 .
1. 6a -b =
Here you have to apply this method called substitution, the meaning is that you have exchange the variables with numbers given you above . So is going to be 6(-2) - 6 which is equal to -12 - 6, this the answer but if the question said find and solve the answers it will be -6