60 + 11x - x^2 is equal to : 1. (4 + x) (15 - x) 2. (4 - x) (15 - x) 3. (4 - x) (15 + x) 4. (4 + x) (15 + x)

60 \+ 11x \- x 2 = 60 \+ (15 \- 4)x \- x 2 = 60 \+ 15x \- 4x \- x 2 = 15(4 \+ x) \- x(4 \+ x) = (4 \+ x)(15 \- x) Hence, option 1 is the correct option.

Mathematics

60 + 11x - x² is equal to :
(4 + x) (15 - x)
(4 - x) (15 - x)
(4 - x) (15 + x)
(4 + x) (15 + x)

Factorisation

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Answer

60 + 11x - x²

= 60 + (15 - 4)x - x²

= 60 + 15x - 4x - x²

= 15(4 + x) - x(4 + x)

= (4 + x)(15 - x)

Hence, option 1 is the correct option.

Answered By

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Mathematics

60 + 11x - x² is equal to :
(4 + x) (15 - x)
(4 - x) (15 - x)
(4 - x) (15 + x)
(4 + x) (15 + x)

Factorisation

Answer

Related Questions

(4x² - 4x + 1) ÷ (2x - 1) is equal to :
2x + 1
2x - 1
2^x - 1
none of these

(x + y)² - 3(x + y) - 4 is equal to :
(x + y + 4) (x + y - 1)
(x + y + 4) (x + y + 1)
(x + y - 4) (x + y + 1)
(x + y - 4) (x + y - 1)

Factorise :
a² + 5a + 6

Factorise :
a² - 5a + 6

Mathematics

60 + 11x - x2 is equal to :(4 + x) (15 - x)(4 - x) (15 - x)(4 - x) (15 + x)(4 + x) (15 + x)

Factorisation

Answer

Related Questions

(4x2 - 4x + 1) ÷ (2x - 1) is equal to :2x + 12x - 12x - 1none of these

(x + y)2 - 3(x + y) - 4 is equal to :(x + y + 4) (x + y - 1)(x + y + 4) (x + y + 1)(x + y - 4) (x + y + 1)(x + y - 4) (x + y - 1)

Factorise :a2 + 5a + 6

Factorise :a2 - 5a + 6

60 + 11x - x² is equal to :
(4 + x) (15 - x)
(4 - x) (15 - x)
(4 - x) (15 + x)
(4 + x) (15 + x)

(4x² - 4x + 1) ÷ (2x - 1) is equal to :
2x + 1
2x - 1
2^x - 1
none of these

(x + y)² - 3(x + y) - 4 is equal to :
(x + y + 4) (x + y - 1)
(x + y + 4) (x + y + 1)
(x + y - 4) (x + y + 1)
(x + y - 4) (x + y - 1)

Factorise :
a² + 5a + 6

Factorise :
a² - 5a + 6