Math, asked by googleqw123, 4 months ago

answer plz it's urgent

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Answered by nami2004

0

Answer:

q² - 10 q + 21

= q²- 7 q - 3q + 21

=. q ( q - 7 ) -3 ( q - 7 )

= (q- 3 ) ( q - 7 )

therefore q= 3 , q = 7

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