89+11=100+27=127 if you wanted to do it easier for you but either way just add them all of to get the sum <span />
<span><span>(<span><span>12</span><span>(<span>3+7</span>)</span></span>)</span><span>(3.5)</span></span><span>=<span><span><span>12</span><span>(<span>3+7</span>)</span></span><span>(3.5)</span></span></span><span>=<span><span><span>12</span><span>(<span>3+7</span>)</span></span><span>(3.5)</span></span></span><span>=<span><span>(<span><span>12</span><span>(10)</span></span>)</span><span>(3.5)</span></span></span><span>=<span><span>(5)</span><span>(3.5)</span></span></span><span>=17.5
</span>
Answer:
192 and 288
Step-by-step explanation:
<span>3x(5x^2 -7x +12) = 15x^3 - 21x^2 + 36x</span>