Easy
If A=7x2−3x+10A=7 x^{2}-3 x+10A=7x2−3x+10 and B=−4x2+6x−4B=-4 x^{2}+6 x-4B=−4x2+6x−4, find A−BA-BA−B
11x2−9x+1411 x^{2}-9 x+1411x2−9x+14
11x2+9x−1411 x^{2}+9 x-1411x2+9x−14
x2+14x+11x^{2}+14 x+11x2+14x+11
11x2−9x−1411 x^{2}-9 x-1411x2−9x−14
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