−8x2(2y − 3x) multiply
distributive propertya(b+c)=ab+acalso\((x^m)(x^n)=x^{m+n}\)so\(-8x^2(2y-3x)=-8x^2(2y)-8x^2(-3x)\)=\((-8)(x^2)(2)(y)+(-8)(x^2)(-3)(x^1)=-16x^2y+24x^3\)
