Question

Add. (4c2 – 5c + 11) + (3c2 + c – 9)

Answer 1

(4c2 – 5c + 11) + (3c2 + c – 9)=7c^2-4c+2

Answer 2

look, i'm explaining it to u.
lets open the brackets first.
that would be
4c^2 - 5 +11 (same as it is) (1)*(3c^2)+(1)*(c)+(1)(-9) } Btw im multiplying with +1 because i want to make sure i dont get the signs jumbled up... this is imp when the signs are ngitive

okay, so now we get:
4c^2-5c+11+3c^2 + c-9
4c^2+3c^2 -5c + c +11 -9
now u get :
7c^2 -4c +2

:) i hope u understand, u can always ask me anything :D ill be glad to help