If a-b-7 and a b-12- find the value of a2-b2

We have to find the value of Given Using identity By substituting the value of we get nbsp; By transposing +24 to left hand side we get , Hence th ...

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Standard VIII

Mathematics

Expansion of (x^2 - y^2)

If a+b=7 and ...

Question

If a + b = 7 and ab = 12, find the value of a² + b²

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Solution

We have to find the value of

Given

Using identity

By substituting the value of we get

By transposing +24 to left hand side we get ,

Hence the value of is .

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Similar questions

If $a + b = 10$ and $a b = 16$ find, the value of $a^{2} - a b + b^{2}$ and $a^{2} + a b + b^{2}$

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If a + b = 7 and ab = 12, find the value of a2 + b2

We have to find the value of Given Using identity By substituting the value of we get By transposing +24 to left hand side we get , Hence the value of is .

If a + b = 7 and ab = 12, find the value of a² + b²

We have to find the value of

Given

Using identity

By substituting the value of we get

By transposing +24 to left hand side we get ,

Hence the value of is .