Question

factorised form of r²- 10 r+21​

Answer 1

10 _mid day hal bsbvudb58e ub21

Answer 2

Step-by-step explanation:

r²- 10 r+21

r² -3r-7r +21

r( r-3) - 7 ( r-3)

(r-3)(r-7) .

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