Question

разложи на множители.
6u2+3u2
2) 4-16m2

Answer 1

$6u^2+3u^2=(6+3)u^2=9u^2$
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$4-16m^2=4*1-4*4m^2=4(1-4m^2)=4(1^2-(2m)^2)=4(1-2m)(1+2m)$