1.

Factorise:- 9x²+16y²+25z²+24xy+40yz+30zx​

Answer»

ANSWER:

(3X + 4Y + 5Z

Step-by-step EXPLANATION:

= 9x²+16y²+25z²+24xy+40yz+30zx

= (3x)²+(4y)²+(5z)²+2.3x.4y+2.4y.5z+2.5z.3x

= (3x + 4y + 5z)²



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