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What is the answer for equation transformable to quadratic equation

1. x(x+3)=28

2. 3s(s-2)=12s

3. (t+1) squared + (t-8) squared + 45

4. (3r+1) squared + (r+2) squared = 65

5. (x+2) squared + (x-2) squared = 16

5 3 3

1
by Asdfghjklll

number 5 is (x+2)squared /over 5 and the (x-2)squared /over 3 and 16/3... with solution thanks :)

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