Answer
Evaluate the expression
4ab + 5bc
when a = 2, b = –6, and c = –2.
To prove
As the expression given in the question be
4ab + 5bc
As given
a = 2, b = –6, and c = –2.
Put all the these values in the above expression.
= 4 × 2 × -6 + 5 × -6 × -2
= -48 + 60
= 12
Therefore the value of expression 4ab + 5bc be 12 .
(when a = 2, b = –6, c = –2 be -12)
