Question

Factors of 49x²-36 is _____​

Answer 1

Answer:

49x² – 36 = (7x)² – (6)²

= (7x+6)(7x–6)

7x+6 = 0

7x = –6

x = –6/7

7x–6 =0

7x = 6

x = 6/7

Therefore, factors of 49x² – 36 are –6/7 and 6/7

Answer 2

$49 {x}^{2} - 36 \\ = 49 {x}^{2} + 42x - 42x - 36 \\ = 7x(7x + 6) - 6(7x + 6) \\ = (7x - 6)(7x + 6) \: answer$