Question

factorise x square - 7 x + 12​

Answer 1

Answer:

(x-3)(x-4)

Step-by-step explanation:

x²-4x-3x+12

x(x-4)-3(x-4)

(x-3)(x-4)

Answer 2

Answer:

Step-by-step explanation:

x² - 7x + 12

This question can be solved by splitting its middle term such that sum of two numbers be 7 and their products be 12.

Such two numbers are 3 and 4. Their sum is 7 and product is 12

x² - 7x + 12

⇒ x² - 3x - 4x + 12

⇒ x ( x - 3 ) - 4 ( x - 3 )

⇒ ( x - 3 ) ( x - 4 )

Hence, the answer is found.