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This quadratic equation can be solved by three methods: (a) factoring (b) completing the square (c) using the quadratic equation formula.

Factoring:

25x2+20x+4 = 0

(5+2)(5x+2) = 0

Solution: x = -2/5 also x = -2/5 (they both have equal roots)

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Q: 25X2 plus 20X plus 4 equals 0?
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