Answer:
11x{2}−15x−10
Explanation:
5x2−9x−10−(−6x2+6x)5 x squared minus 9 x minus 10 minus open paren negative 6 x squared plus 6 x close paren\(5x^{2}-9x-10-\left( -6x^{2}+6x\right) \)
5x2−9x−10+6x2−6x5 x squared minus 9 x minus 10 plus 6 x squared minus 6 x\(5x^{2}-9x-10+6x^{2}-6x\)
11x2−9x−10−6x11 x squared minus 9 x minus 10 minus 6 x\(\textcolor{#C58AF9}{11x^{2}}-9x-10-6x\)
11x2−15x−10 x squared negative 15 x minus 10\(11x^{2}\textcolor{#C58AF9}{-15x}-10\)