3 years ago

Completely factor the equation: 35 + 5x

Mathematics

1 answer:

OlgaM077 [116]3 years ago

5 0

5 (x + 7) is the answer

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$r^2~~ = ~~100^2~~ + ~~(r-35)^2\implies r^2~~ = ~~100^2~~ + ~~\stackrel{\textit{\Large F~O~I~L}}{(r^2-70r+1225)} \\\\\\ r^2=10000+r^2-70r+1225\implies 0=10000-70r+1225 \\\\\\ 70r=10000+1225\implies 70r=11225\implies r=\cfrac{11225}{70}\implies r\approx 160.4$