Algebraic Expre...

$$(a+1)(a-2) = a^2-a-2$$, this equation is true for

Find the value of $$99\times 101$$ using standard identity.

Using standard identity, find the value of $$102^2$$.

Using standard identity, find $$(2x-y)^2$$.

Using standard identity, find the value of $$(a+2b)^2$$.

$$2x^2y\times (x^2y^2z+xyz)$$

Using standard identity, find the value of $$99^2$$.

Find the value of $$995^2-5^2$$.

Find the value of $$49^2$$ using standard identity.

Square of $$3a-4b$$ is: