x^2 - (a - b) x - ab is equal to: 1. (x - a) (x - b) 2. (x + a) (x - b) 3. (x - a) (x + b) 4. (x + a) (x + b)

x 2 \- (a \- b) x \- ab = x 2 \- ax \+ bx \- ab = (x 2 \- ax) \+ (bx \- ab) = x(x \- a) \+ b(x \- a) = (x \- a)(x \+ b) Hence, option 3 is the correct option.

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Mathematics

x² - (a - b) x - ab is equal to:
(x - a) (x - b)
(x + a) (x - b)
(x - a) (x + b)
(x + a) (x + b)

Factorisation

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Answer

x² - (a - b) x - ab

= x² - ax + bx - ab

= (x² - ax) + (bx - ab)

= x(x - a) + b(x - a)

= (x - a)(x + b)

Hence, option 3 is the correct option.

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Mathematics

x² - (a - b) x - ab is equal to:
(x - a) (x - b)
(x + a) (x - b)
(x - a) (x + b)
(x + a) (x + b)

Factorisation

Answer

Related Questions

x³ - x² + ax + x - a - 1 is equal to:
(x — 1) (x² + a - 1)
(x — 1) (x² + a + 1)
(x — 1) (x² - a + 1)
(x — 1) (x² - a - 1)

8x³ - 18x is equal to:
x(2x + 3) (2x - 3)
2x(3 - 2x) (3 + 2x)
2x(2x + 3) (2x - 3)
x(4x + 6y) (4x - 6y)

Factorise :
8x²y - 18y³

Factorise :
25x³ - x

Mathematics

x2 - (a - b) x - ab is equal to:(x - a) (x - b)(x + a) (x - b)(x - a) (x + b)(x + a) (x + b)

Factorisation

Answer

Related Questions

x3 - x2 + ax + x - a - 1 is equal to:(x — 1) (x2 + a - 1)(x — 1) (x2 + a + 1)(x — 1) (x2 - a + 1)(x — 1) (x2 - a - 1)

8x3 - 18x is equal to:x(2x + 3) (2x - 3)2x(3 - 2x) (3 + 2x)2x(2x + 3) (2x - 3)x(4x + 6y) (4x - 6y)

Factorise :8x2y - 18y3

Factorise :25x3 - x

x² - (a - b) x - ab is equal to:
(x - a) (x - b)
(x + a) (x - b)
(x - a) (x + b)
(x + a) (x + b)

x³ - x² + ax + x - a - 1 is equal to:
(x — 1) (x² + a - 1)
(x — 1) (x² + a + 1)
(x — 1) (x² - a + 1)
(x — 1) (x² - a - 1)

8x³ - 18x is equal to:
x(2x + 3) (2x - 3)
2x(3 - 2x) (3 + 2x)
2x(2x + 3) (2x - 3)
x(4x + 6y) (4x - 6y)

Factorise :
8x²y - 18y³

Factorise :
25x³ - x