Expand : ( X + Y - Z )2

Expand : ( x + y - z )²

योग

( x + y - z )² = x² + y² + z² + 2(x)(y) - 2(y)(z) - 2(z)(x)
= x² + y² + z² + 2xy - 2yz - 2zx

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Expansion of Formula

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अध्याय 4: Expansions - Exercise 4 (C) [पृष्ठ ६२]

अध्याय 4 Expansions
Exercise 4 (C) | Q 3.1 | पृष्ठ ६२

Expand : ( x + 8 )( x - 10 )

If a² + b² + c² = 50 and ab + bc + ca = 47, find a + b + c.

In the expansion of (2x² - 8) (x - 4)²; find the value of coefficient of x²

If 2( x² + 1 ) = 5x, find :
(i) `x - 1/x`

(ii) `x^3 - 1/x^3`

If a² + b² = 34 and ab = 12; find : 7(a - b)² - 2(a + b)²

If 3x - `4/x` = 4; and x ≠ 0 find : 27x³ - `64/x^3`

The difference between two positive numbers is 4 and the difference between their cubes is 316.
Find : The sum of their squares

Find the value of 'a': 4x² + ax + 9 = (2x + 3)²

Find the value of 'a': 4x² + ax + 9 = (2x - 3)²

If x = `1/[ 5 - x ] "and x ≠ 5 find "x^3 + 1/x^3`