Question

Factors of 3x²-x -4 are​

Answer 1

Answer :

• 3x² - x - 4 = (3x - 4) (x + 1)

Given :

• 3x² - x - 4

To find :

• Factorise

Solution :

》3x² - x - 4

》3x² + 3x - 4x - 4

》3x(x + 1) - 4(x + 1)

》(3x - 4) (x + 1)

Hence,  3x² - x - 4 = (3x - 4) (x + 1)

More Explanation :

• So, This is a Quadratic expression
• A Quadratic equation is an equation that can be written in standard form
• ax² + bx + c = 0
• Where,  a , b are real numbers then a is not equal to zero

Answer 2

Given Equation:-

• 3x² - x - 4

To Do:-

• Factorization

Criteria used:-

• Middle term split

Solution:-

๛ 3x² - x - 4

๛ 3x² - (4 - 3)x - 4

๛ 3x² - 4x + 3x - 4

๛ x(3x - 4) + 1(3x - 4)

๛ (x + 1) (3x - 4)

Hence, the required answer is

(x + 1) (3x - 4).

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