-3.2b + 9
by adding like terms together.
<span>Question :
The length of a side of a square is . If the area of the square is 12, find x.
Answer :
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![area\ of\ the\ square = side \times side](https://tex.z-dn.net/?f=area%5C%20of%5C%20the%5C%20square%20%3D%20side%20%5Ctimes%20side)
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![12 = x \times x](https://tex.z-dn.net/?f=12%20%3D%20x%20%5Ctimes%20x)
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![12 = x^{2}](https://tex.z-dn.net/?f=12%20%3D%20x%5E%7B2%7D)
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![x^{2}=12](https://tex.z-dn.net/?f=x%5E%7B2%7D%3D12)
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![x= \sqrt{12}](https://tex.z-dn.net/?f=x%3D%20%5Csqrt%7B12%7D%20)
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![x= \sqrt{4 \times 3}](https://tex.z-dn.net/?f=x%3D%20%5Csqrt%7B4%20%5Ctimes%203%7D%20)
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![x= 2\sqrt{3}](https://tex.z-dn.net/?f=x%3D%202%5Csqrt%7B3%7D%20)
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3z = 2z + 5
3(5) = 2(5) + 5
15 = 15
answer
True
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8-4x = 4x when x = 0
8 = 0 ....can't be
Answer
False