Question

(6m-5)(6m+5)-4m(9m+2)=1
$(6m - 5)(6m+ 5) - 4m(9m + 2) = 1$

Answer 1

$36 {m}^{2} - 25 - 36 {m}^{2} - 8m = 1 \\ - 25 - 8m = 1 \\ - 8m = 1 + 25 \\ - 8m = 26 \\ m = 26 \div ( - 8) \\ m = - \frac{26}{8} = - \frac{13}{4} = - 3\frac{1}{4}$