Question

Q14) What should be added to
3x + 2x2 to get 4x2 - 5x?​

Answer 1

Answer:

-8x+2x^2

Step-by-step explanation:

let 3x+2x^2 be a and 4x^2-5x be b and the no. to be added be c

therefore,

a+c=b

=>a-b= -c

substituting the value,

(3x+2x^2)-(4x^2-5x)= -c

=>3x+2x^2-4x^2+5x= -c

=>8x-2x^2=-c

=>-8x+2x^2=c