Question

3(x^2 - 4) + 7(x - 2)its says evaluate the expression for x=5

Answer 1

3(x^2 - 4) + 7(x - 2)

its says evaluate the expression for x=5​

step 1

substitute the value of x in the expression

3(5^2 - 4) + 7(5 - 2)

3(25-4)+7(3)

3(21)+21

63+21

84