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sveta [45]
3 years ago
7

Can somebody help me ?

Mathematics
1 answer:
nata0808 [166]3 years ago
6 0
You are solving quadratic equations. to do so, use the quadratic formula​ when possible, or factor. 15- for example, you can factor (x+5)(x+3), therefore x=-5,-3. You then go back and plug in your answers to see if you can eliminate any of them.
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