(2a2 + ab + 2b) + (4a2 − 3ab + 9)
2 answers:
The answer is
6a^2 - 2ab + 2b + 9.
<span><span><span><span><span><span>=2<span>a^2</span></span>+<span>ab</span></span>+<span>2b</span></span>+<span>4<span>a^2</span></span></span>+</span>−<span><span>3a</span>b</span></span>+<span>9
Combine likes terms:
</span><span>=<span><span><span><span><span><span>2<span>a^2</span></span>+<span>ab</span></span>+<span>2b</span></span>+<span>4<span>a^2</span></span></span>+<span>−<span><span>3a</span>b</span></span></span>+9
</span></span><span>=<span><span><span><span>(<span><span>2<span>a^2</span></span>+<span>4<span>a^2</span></span></span>)</span>+<span>(<span><span>ab</span>+<span>−<span><span>3a</span>b</span></span></span>)</span></span>+<span>(<span>2b</span>)</span></span>+<span>(9)
</span></span></span><span>=<span><span><span><span>6<span>a^2</span></span>+<span>−<span><span>2a</span>b</span></span></span>+<span>2b</span></span>+<span>9
Your answer is:
</span></span></span>=<span><span><span><span>6<span>a^2</span></span>−<span><span>2a</span>b</span></span>+<span>2b</span></span>+<span>9</span></span>
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