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Question 20 Factorised form of r2−10r+21 is a) (r−1)(r−4) b) (r−7)(r−3) c) (r−7)(r+3) d) (r+7)(r+3)

Answer» Question 20

Factorised form of r210r+21 is
a) (r1)(r4)
b) (r7)(r3)
c) (r7)(r+3)
d) (r+7)(r+3)


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