Question

factories 3-x(4+7x)​

Answer 1

Answer:

(x + 1) (3 - 7x)

Step-by-step explanation:

3-x(4+7x)

3-4x-7x^2

-7x^2-4x+3

-7x(x+1) +3 (x+1)

(x+1)(3-7x)

Answer 2

$\to\orange{ \rm3 - x(4 + 7x) }\\ \to\blue{\rm3 - 4x - {7x}^{2}} \\ \to\blue{ \rm3 + 3x - 7x{ - 7x}^{2} }\\ \to\orange{ \rm 3(1 + x) - 7x(1 + x) }\\ \to \pink{\rm (3 - 7x)(1 + x)} \\ \\ \tt \therefore \: \: \: x = \red{\frac{ - 3}{7} } \: \: \: \: or \: \: \: \: \red1$