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zysi [14]
3 years ago
9

What is 1 plus 1. thanks for the help on my 21th grade math

Mathematics
1 answer:
almond37 [142]3 years ago
4 0
1 plus 1 is 100, welcome <3
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lubasha [3.4K]
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Fudgin [204]

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Help me solve -4+5b+3b please
jonny [76]
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6 0
4 years ago
Can you help me pls <br> 6+2=
tankabanditka [31]

Answer:

The answer is 8

Step-by-step explanation:

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6 0
3 years ago
I just need the extraneous root
gregori [183]

Answer:

Step-by-step explanation:

2+\sqrt{2x-3} =\sqrt{x+7}  ~~~(1)\\ x \ge -7\\and ~x\ge \frac{3}{2} \\squaring ~(1)\\4+2x-3+4\sqrt{2x-3} =x+7\\4\sqrt{2x-3} =x+7-2x-4+3\\4\sqrt{2x-1} =-x+6\\squaring\\16(2x-3)=x^2-12x+36\\32x-48=x^2-12x+36\\x^2-12x-32x+36+48=0\\x^2-44x+84=0\\\\x^2-2x-42x+84=0\\x(x-2)-42(x-2)=0\\(x-2)(x-42)=0\\x=2,42\\x=2 is a solution.\\whereas ~x=42 ~is~an~extraneous ~root.\\as~2+\sqrt{2*42-3} =\sqrt{42+7} \\2+\sqrt{81} =\sqrt{49} \\2+9=7\\or 11=7\\which~is~not~true.

8 0
4 years ago
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