Factorise each following expressions 1] 15x+25 2]3x^2-9x 3] 4xy+40x^2
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Step-by-step explanation:
1)15x+25
=5(3x+5)
2)3x²-9x
=3x(x-3)
3)4xy+40x²
=4x(y+10x)
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