Question

1. 5x² + 12y + 7 =
2. (x + 3) x (x + 2) =
3. (x + 10)² =

Thanks

Answer 1

1. 5x²+12y+7 = 5x²+12y+7
2. (x+3)(x+2) = x²+2x+3x+6 = x²+5x+6
3. (x+10)² = (x+10)(x+10)
= x²+10x+10x+100
= x²+20x+100
maaf klo salah

Answer 2

1. 5x² + 12y + 7 =  5x² + 12y + 7 
2.  (x + 3) x (x + 2) = + 2x + 3x + 6
                             =   + 5x +6

3. (x + 10)² = (x + 10) x (x + 10)
                 =   + 10x + 10x +100
                  =  + 20x + 100