Chapter 1 - Section 1.3 - Algebraic Expressions - 1.3 Exercises - Page 34: 39

$ 9x^2 - 16$

$Multiply$ $the$ $algebraic$ $expressions$ $using$ $a$ $Special$ $Product$ $Formula$ $and$ $simplify:$ $(3x-4)(3x+4)$ Use the Sum and Difference of Same Terms Product Formula: $(A+B)(A-B) = A^2-B^2$ $(3x-4)(3x+4) = (3x)^2 - 4^2$ $= 9x^2 - 16$