Factorise 16x^2-37x+21
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16x^2-37x+21
21×16=336
16+21=37
16x^2-(16+21)x+21
16x^2-16x-21x+21
16x(x-1)-21(x-1)
(16x-21) (x-1) factors
x-1=0
x=1
16x-21=0
16x=21
x=21/16
21×16=336
16+21=37
16x^2-(16+21)x+21
16x^2-16x-21x+21
16x(x-1)-21(x-1)
(16x-21) (x-1) factors
x-1=0
x=1
16x-21=0
16x=21
x=21/16
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