CLASS-7
VALUE OF AN ALGEBRAIC EXPRESSION

Value Of An Algebraic Expression 

A literal in an algebraic expression can have different values in different situations, when the literal takes a particular value, so does the expression.

If, 4a⁴ + 2ab + 5b² is a polynomial in a & b, let a = 2, b = 3, now find the value of 4a⁴ + 2ab + 5b²

Ans) we have to find the value of the polynomial 4a⁴ + 2ab + 5b²  where a = 2, b = 3

4a⁴ + 2ab + 5b² =  4X 2⁴ + 2 X 2 X 3 + 5 X 3² = 64 + 12 + 45 = 121