Factorise 9x2 + 24xy+16y2
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Answer:
(3x+4y)(3x+4y)
Step-by-step explanation:
9x2+24xy+16y2
=9x2+(12+12) xy+16y2
=9x2+12xy+12xy+16y2
=(9x2+12xy)(12xy+16y2)
=3x(3x+4y)4y(3x+4y)
=(3x+4y)(3x+4y)
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