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प्रश्न
(a + b)(a – b) = a2 – b2
पर्याय
True
False
उत्तर
This statement is True.
Explanation:
We know that,
(a + b)(a – b) = a × a – a × b + b × a – b × b
= a2 – b2
= a2 – ab + ba – b2
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संबंधित प्रश्न
Using the identity (a + b)(a – b) = a2 – b2, find the following product
(p + 2)(p – 2)
If X = a2 – 1 and Y = 1 – b2, then find X + Y and factorize the same
Simplify (5x – 3y)2 – (5x + 3y)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
28ay2 – 175ax2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`1/36a^2b^2 - 16/49b^2c^2`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
16x4 – 81
The sum of (x + 5) observations is x4 – 625. Find the mean of the observations.
Verify the following:
(a + b + c)(a2 + b2 + c2 – ab – bc – ca) = a3 + b3 + c3 – 3abc
Verify the following:
(a2 – b2)(a2 + b2) + (b2 – c2)(b2 + c2) + (c2 – a2) + (c2 + a2) = 0
The product of two expressions is x5 + x3 + x. If one of them is x2 + x + 1, find the other.
