Factorise
$x^{2}+4 y^{2}+9 z^{2}-4 x y-12 y z+6 z x$
Factorise
$x^{2}+4 y^{2}+9 z^{2}-4 x y-12 y z+6 z x$
$x^{2}+4 y^{2}+9 z^{2}-4 x y-12 y z+6 z x$
$=(x)^{2}+(-2 y)^{2}+(3 z)^{2}+2(x)(-2 y)$ $+2(-2 y)(3 z)+2(3 z)(x)$
$=(x-2 y+3 z)^{2}$
$=(x-2 y+3 z)(x-2 y+3 z)$
Similar Questions
Classify the following polynomials as polynomials in one variable, two variables etc.
$y^{3}-5 y$
Classify the following polynomials as polynomials in one variable, two variables etc.
$y^{3}-5 y$
Expand
$(2 x+3 y+5)^{2}$
Expand
$(2 x+3 y+5)^{2}$
Factorise
$25 x^{2}+9 y^{2}+64+30 x y-48 y-80 x$
Factorise
$25 x^{2}+9 y^{2}+64+30 x y-48 y-80 x$
State whether each of the following statements is true or false
The degree of polynomial $5 x^{2}-7 x+2$ is $5 .$
State whether each of the following statements is true or false
The degree of polynomial $5 x^{2}-7 x+2$ is $5 .$
Factorise $: x^{3}-x^{2}-17 x-15$
Factorise $: x^{3}-x^{2}-17 x-15$