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Actually, x^2+10x+25 is a perfect square which is equal to (x+5)^2. So no need to perfect the square. Square the both sides so it becomes x+5=0. Transpose by APE so bit becomes x=-5...
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25 daw sabi ni mr. calculator
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x^2 + 10X +25 =0
ang sagot ay - 30 and 20
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