Math, asked by neelucharpe, 5 months ago

Factorise the following
a) 9x²-24xy+16y²
b) x²+9x+20

Answers

Answered by raypun3837

0

Step-by-step explanation:

9x²-24xy+16y²

(3x)²-2*3x*4y+(4y)²

(3x-4y)²

x²+9x+20

x²+(5+4)x+20

x²+5x+4x+20

x(x+5)+4(x+5)

(x+5)(x+4)

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