Answer:
(4x-7)(4x+7)
Step-by-step explanation:
16x² - 49
realize that 16 = 4² and 49 = 7²
Substituting these values into the expression,
16x² - 49
= 4²x² - 7²
= (4x)² - 7²
recall the algebra property : a² - b² = (a+b)(a-b)
Applying this to our expression:
(4x)² - 7²
= (4x-7)(4x+7) Answer
