Solve this equation using quadratic formula 25x^2+30x+7=0
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=>(5x)^2+2×5x×3+(3)^3-(3)^2+7=0
=>(5x+3)^2-9+7=0
=>(5x+3)^2=2
=>5x+3=√2
=>X=+-√2-3/5 ans.
Kbiology:
The answer is -1/5 and -7/5
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