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3 years ago

6

WILL GIVE BRAINLIEST IF RIGHT

1 answer:

castortr0y [4]3 years ago

8 0

Answer:

Step-by-step explanation:

2x^2+14x=520

x^2+7x-260

x(x+7)=260

so x=13

13x20=260

second

x^2+10x=875

x(x+10)=875

x= 25

25x35=875

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