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3 years ago

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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