−10x2+20x+7
Step-by-step explanation:
Apply the distributive property.
5⋅−2x2+5x⋅4−(−7)
Multiply 44 by 55.
5⋅−2x2+20x−(−7)
Multiply 55 by −2-2.
−10x2+20x−(−7)
Multiply −1 by −7
