Question 1

Which formula do we use to expand $(m-8n)^2$?

Accepted Answer

Formula 4

Answer

Formula 2

Answer

Formula 3

Answer

Formula 1

Question 2

Expand $(m-8n)^2$

Accepted Answer

$m^2-16mn+64n^2$

Answer

$m^2+16mn+64n^2$

Answer

$m^2+16mn-64n^2$

Answer

$m^2-16mn-64n^2$

Question 3

Expand $(l+mn)(l-mn)$

Accepted Answer

$l^2-m^2n^2$

Answer

-$l^2-m^2n^2$

Answer

$l^2-mn^2$

Answer

$l^2+m^2n^2$

Question 4

Which formula is used for the expansion of $(4x+\frac{1}{3}y)(4x-\frac{2}{5}y)$

Accepted Answer

Formula 1

Answer

Formula 2

Answer

Formula 3

Answer

Formula 4

Question 5

Expand $(4x+\frac{1}{3}y)(4x-\frac{2}{5}y)$

Accepted Answer

$16x^2-\frac{4}{15}xy-\frac{2}{15}y^2$

Answer

$16x^2-\frac{4}{15}xy+\frac{2}{15}y^2$

Answer

$16x^2+\frac{4}{15}xy-\frac{2}{15}y^2$

Answer

$16x^2+\frac{4}{15}xy+\frac{2}{15}y^2$

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