How do you simplify #(20x^6 - 13x^5) - (-7x^6 + 7x^5 - 20x^3 - 4x^2)#?

Related questions

• How do you add two polynomials?
• How do you subtract two polynomials?
• How do you add and simplify #3x^2-4x+7# and #2x^3-4x^2-6x+5#?
• How do you subtract #5b^2-2a^2# from #4a^2-8ab-9b^2#?
• How do you simplify #(6.9a^2-2.3b^2+2ab)+(3.1a-2.5b^2+b)#?
• How do you simplify #(-t+15t^2)-(5t^2+2t-9)#?
• How do you subtract #(-5m^2-m)-(3m^2+4m-5)#?
• How do you add two polynomials if they don't have like terms?
• How do you simplify #(3a+4b)-(-6a-3b)#?
• How do you subtract #(x^2-8x+7)-(6x^2+7x-3)#?