Question

factorise
(-2x +3y -5z )^2​

Answer 1

Answer:

=4x2−12xy+20xz+9y2−30yz+25z2

Step-by-step explanation:

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Answer 2

Answer:

(-2x+3y-5z)².

((-2x)+(3y)+(-5z))².

It is in the form of (a+b+c)²=a²+b²+c²+2ab+2bc+2ca.

a=-2x. b=3y. c=-5z.

((-2x)+(3y)+(-5z))²=(-2x)²+(3y)²+(-5z)²+2(-2x)(3y)+2(3y)(-5z)+2(-5z)(-3x).

=4x²+9y²+25z²-12xy-30yz+30zx.

I think this is your answer.