The value of the polynomial $5 x-4 x^{2}+3,$ when $x=-1$ is
$2$
$6$
$-6$
$-2$
Let $P(x)=5 x-4 x^{2}+3$
Therefore, $P(-1)=5(-1)-4(-1)^{2}+3=-5-4+3=-6$
Hence, $(c)$ is the correct answer.
Evaluate
$(1002)^{2}$
Expand
$(2 a+3 b)(2 a-5 b)$
Give possible expressions for the length and breadth of a rectangle whose area is given as $\left(20 x^{2}+22 x+6\right)$ square units. $(x>0)$
Using suitable identity, evaluate the following:
$999^{2}$
$(x+3)(x+8)$
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