Factorise the following:
$25 x^{2}+16 y^{2}+4 z^{2}-40 x y+16 y z-20 x z$
Factorise the following:
$25 x^{2}+16 y^{2}+4 z^{2}-40 x y+16 y z-20 x z$
$25 x^{2}+16 y^{2}+4 z^{2}-40 x y+16 y z-20 x z$
$=(-5 x)^{2}+(4 y)^{2}+(2 z)^{2}+2 \cdot(-5 x)(4 y)+2(4 y)(2 z)+2(2 z)(-5 x)$
$=(-5 x+4 y+2 z)^{2}$
Similar Questions
Factorise
$27 x^{3}-y^{3}+64 z^{3}+36 x y z$
Factorise
$27 x^{3}-y^{3}+64 z^{3}+36 x y z$
Without actually calculating the cubes, find the value of each of the following
$\left(\frac{1}{2}\right)^{3}+\left(\frac{1}{3}\right)^{3}-\left(\frac{5}{6}\right)^{3}$
Without actually calculating the cubes, find the value of each of the following
$\left(\frac{1}{2}\right)^{3}+\left(\frac{1}{3}\right)^{3}-\left(\frac{5}{6}\right)^{3}$
$x+1$ is a factor of the polynomial
$x+1$ is a factor of the polynomial
If $x+2$ is a factor of $x^{3}+a x^{2}-x+30,$ find the value of $a$.
If $x+2$ is a factor of $x^{3}+a x^{2}-x+30,$ find the value of $a$.
Evaluate
$(98)^{2}$
Evaluate
$(98)^{2}$