Question

factorisation of 4x²-16x+7 I want step by step explaination ax²+bx+c like this​

Answer 1

Step-by-step explanation:

4x²-16x+7

sum is -16

product is 4×7=28

possible pair of numbers is -2 and -14

Using the splitting the middle term method

4x²-2x-14x+7

2x(2x-1)-7(2x-1)

(2x-7)(2x-1)

factors are (2x-7) and (2x-1)

Answer 2

Step-by-step explanation:

4x^2-16x+7

4x^2-14x-2x+7

2x(2x-7)-1(2x-7)

(2x-1)(2x-7)

x=1/2, 7/2