Question

Add 5x³-3x+7,2x²-1 and 7 x³-11x²+4x-3​

Answer 1

Answer:

5x³ -3x +7

+ 2x² -1

+ 7x³ -11x² +4x -3

12x³ -9x² + x +3

OR

(5x³-3x+7) + (2x²-1) + (7x³-11x²+4x-3)

= 5x³-3x+7+2x²-1+7x³-11x²+4x-3

= (5x³+7x³)+(2x²-11x²)+(-3x+4x)+(7-1-3)

= 12x³-9x²+x+3

Hence, (5x³-3x+7) + (2x²-1) + (7x³-11x²+4x-3) = 12x³-9x²+x+3.