Question

a + b=25 and a² + b² = 225
find ab​

Answer 1

a+b=25

a²+b²=225

ab=25

Squaring both the sides,we get-----

(a+b)²=(25)²

a²+b²+2ab=625

225+2ab=625

2ab=625-225

2ab=400

ab=400/2

ab=200

Answer 2

Step-by-step explanation:

after this I have no time please do the four equations which u get ur self

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I went crazy to answer it