Factorisation by Common Factors

 $-4(-x+3)$  

 $2(2x+6)$  

 $-4(-x-3)$  

I don't know 😓

 $3(3-2x)$  

 $3(2x-3)$  

 $-3(3+2x)$  

I don't know 😓

 $-y(-c+x)$  

 $-y(-x+c)$  

 $y(c+x)$  

I don't know 😓

 $-x(y+z)$  

 $-x(y+z)$  

 $x(-z+y)$  

I don't know 😓

 $5(-x+y-z)$  

 $-5(-x-y-z)$  

 $-5(z-x-y)$  

I don't know 😓

 $-2(10x-9y+7z)$  

 $-2(-10x+9y+7z)$  

 $-2(9y-7z-10x)$  

I don't know 😓

 $x(y+a-2z)$  

 $-x(-2z-y-a)$  

 $-x(y-a-2)$  

I don't know 😓

 $(x+8)(x+2)$  

 $x^2+10x+16$  

 $(8+x)(2-x)$  

I don't know 😓

 $(-3-x)(5-x)$  

 $x^2-8x+15$  

 $(x-5)(x-3)$  

I don't know 😓

 $-4b(2a-3)(5-x)$ 

 $8abx-40ab+48bx$ 

 $-4b(2a-3)(x-5)$ 

I don't know 😓