${(a - b)}^{2}$ = __________ .

$a^{2}$ + $b^{2}$ - 2ab

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$a^{2}$ + $b^{2}$ - 2 $a^{2}$ $b^{2}$

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$a^{2}$ + $b^{2}$ -4ab

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$a^{2}$ + $b^{2}$ + 2ab

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Solution

The correct option is A
$a^{2}$ + $b^{2}$ - 2ab

${(a - b)}^{2}$ = $a^{2}$ + $b^{2}$ - 2ab

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Similar questions

Q. The correct order of stability for the following species is:

B_{2}, B_{2}^{-} a n d B_{2}^{+}

Q. Prove the followings,

(a + b)^{2} + (a - b)^{2} = 2 (a^{2} + b^{2})

ii)

(a + b)^{2} - (a - b)^{2} = 4 a b

Which of the following is correct?
a) $(a - b)^{2} = a^{2} + 2 a b - b^{2}$
b) $(a - b)^{2} = a^{2} - 2 a b + b^{2}$
c) $(a - b)^{2} = a^{2} - b^{2}$
d) $(a + b)^{2} = a^{2} + 2 a b - b^{2}$

Q. Simplify

\frac{a + \sqrt{a^{2} - b^{2}}}{a - \sqrt{a^{2} - b^{2}}} + \frac{a - \sqrt{a^{2} - b^{2}}}{a + \sqrt{a^{2} - b^{2}}}

Q. Factorise:

(a + b)^{2} - 2 (a^{2} - b^{2}) + (a - b)^{2}

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(a−b)2 = __________ .

The correct option is A a2 + b2 - 2ab (a−b)2 = a2 + b2 - 2ab

${(a - b)}^{2}$ = __________ .

The correct option is A
$a^{2}$ + $b^{2}$ - 2ab

${(a - b)}^{2}$ = $a^{2}$ + $b^{2}$ - 2ab