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zhenek [66]
3 years ago
10

Plz. solve this sum

Mathematics
1 answer:
wariber [46]3 years ago
5 0

Answer:

\large\boxed{a-b=11}

Step-by-step explanation:

\text{Use}\ x^2-y^2=(x-y)(x+y).\\\\\text{We have}\\\\a^2-b^2=275\ \text{and}\ a+b=25.\\\\\text{Substitute:}\\\\275=(a-b)(25)\qquad\text{divide both sides by 25}\\\\\dfrac{(a-b)(25)}{25}=\dfrac{275}{25}\\\\\boxed{a-b=11}

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Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/4046336-if-df-9x-39-find-ef.html
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