Question

(9x^2+5x^2+11x)+(-2x^3+9x-8x^2)

Answer 1

Answer:

• First step is to remove those unnecessary brackets :

$\longrightarrow\tt \: 9 {x}^{3} + 5 {x}^{2} + 11x - 2 {x}^{3} + 9x - 8 {x}^{2}$

• Combine the like terms :

$\longrightarrow \tt \: 9 {x}^{3} - 2 {x}^{3} + 5 {x}^{2} - 8 {x}^{2} + 11x + 9x$

$\longrightarrow \boxed{\tt \: 7 {x}^{3} - 3 {x}^{2} + 20x}$

• Our final answer is 7x^3 - 3x^2 + 20x .

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