Question

36n^2-49=(6n+7)(7-6n)

Answer 1

36n²-49=(6n+7)(7-6n)
36n²-49=(7+6n)(7-6n)
36n²-49=7²-(6n)²
36n²-49=49-36n²
72n²=98
n²=98/72
n²=49/36
n₁=7/6; n₂=-7/6