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ololo11 [35]
3 years ago
13

How to solve the problem

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
3 0

Answer:

x=5

Step-by-step explanation:

∠D=∠E (angles opposite to equal sides are equal)

So, x^{2}=3x+10

    10=x^{2}-3x

    10=x(x-3)

we know 5×2= 10 & 5-3=2,

So, 10=5×(5-3)

      10=5×2

∴x=5

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