Question

Factorise 16a^2b - b ÷ 16a^2 ?

Answer 1

16a^2 b - b/16a^2
b(16a^2 - 1/16a^2)
b[ (4a)^2 - (1/4a)^2]
b(4a +1/4a) (4a - 1/4a)

Answer 2

${16a}^{2} b -b \div {16a}^{2} \\ {16a}^{2} b - \frac{b}{16} \times {a}^{2} \\ {16a}^{2} b - \frac{ {a}^{2}b }{16} \\ \frac{255}{16} {a}^{2} b$