Question

pls tell me 3 and 4th

solve in copy

class 10 th ​

Answer 1

Answer:

3) 2x² - 6x + 4

2x² - 4x - 2x + 4

2x(x-2) - 2(x-2)

(2x-2)(x-2)

4)3x² + 16x + 21

3x² + 9x + 7x +21

3x(x+3) +7 (x+3)

(3x+7)(x+3)

Answer 2

Step-by-step explanation:

iii) 2x^2-6x+4

2x^2-2x-4x+4

2x(x-2)-2(x-2)

(x-2)(2x-2)

iv)3x^2+16x+21

3x^2+9x+7x+21

3x(x+3)+7(x+3)

(x+3)(3x+7)