Question

Multiply the Binobimals ((2.5l - 0.5m) and (2.5l + 0.5m) ​

Answer 1

$(2.5l - 0.5m)(2.5l + 0.5m) \\ = {(2.5l)}^{2} - {(0.5m)}^{2} \\ = 6.25 {l}^{2} - 0.2 {m}^{2}$

Identity used:

${x}^{2} - {y}^{2} = (x +y)(x - y)$

Answer 2

Answer:

2.5l (2.5l+0.5m) - 0.5m(2.5l+0.5m)

6.25l² + 1.25lm - 1.25ml - 0.25m²

6.25l² - 0.25m²...ans