score: 66/100 penalty: none\nquestion\nfactor completely.\n$49x^2 - 4$
score: 66/100 penalty: none\nquestion\nfactor completely.\n$49x^2 - 4$
Answer
Answer:
((7x + 2)(7x - 2))
Explanation:
Step1: Identify the form
The expression (49x^{2}-4) is a difference of squares, since (49x^{2}=(7x)^{2}) and (4 = 2^{2}). The formula for factoring a difference of squares is (a^{2}-b^{2}=(a + b)(a - b)).
Step2: Apply the formula
Here, (a = 7x) and (b = 2). Substituting these into the formula, we get ((7x)^{2}-2^{2}=(7x + 2)(7x - 2)).