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How will you help your friends in studies? |
| Answer» ANSWER EXPLANATION: There are two ways to solve this question. The faster WAY is to multiply each side of the given equation by ax−2 (so you can get rid of the fraction). When you multiply each side by ax−2, you should have:24x2+25x−47=(−8x−3)(ax−2)−53You should then multiply (−8x−3) and (ax−2) using FOIL.24x2+25x−47=−8ax2−3ax+16x+6−53Then, reduce on the RIGHT side of the equation24x2+25x−47=−8ax2−3ax+16x−47Since the coefficients of the x2-term have to be equal on both sides of the equation, −8a=24, or a=−3.The other option which is LONGER and more tedious is to attempt to PLUG in all of the answer choices for a and see which answer choice makes both sides of the equation equal. Again, this is the longer option, and | |