Find the value of the expression 4a⁴ - 2b² + 40 when a = 2 and b = 7.

Solution:

Expressions are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.

Given: 4a⁴ - 2b² + 40

When values are given to variables, the algebraic expressions can be evaluated.

When a = 2 and b = 7

Substituting the values in the given expression

= 4(2)⁴ - 2(7)² + 40

By further calculation

= 4(16) - 2(49) + 40

So we get,

= 64 - 98 + 40

= 6

Therefore, the value is 6.

Find the value of the expression 4a⁴ - 2b² + 40 when a = 2 and b = 7.

Summary:

The value of the expression 4a⁴ - 2b² + 40 when a = 2 and b = 7 is 6.