Question

$4x^{2} -16x+15$ factorize

Answer 1

Answer:

Given:4x^2 -16x +15

Step-by-step explanation:

Factorization:

4x^2-10x-6x+15

2x(2x-5)-3(2x-5)

(2x-3)(2x-5)

x=3 or x=5

Answer 2

4x^2-16x+15

first multiply 4 and 15

i.e 4×15 = 60

divide the 60 with two numbers.we add or substract we have to get 16 when we divide 60 with two numbers.

here 6 × 10 = 60 if we add the two numbers, means 6 + 10 = 16

now subtitute these value in x co effiecient

4x^2-10x-6x+15

take 2 as common beacause 4 and 10 are divisible by 2

2x(2x-5)-3(2x-5)

2x-5 = 0

or

2x-3 = 0