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Natalka [10]
2 years ago
7

How do I solve this equation? (-4x+12)^1/2 = x

Mathematics
1 answer:
lorasvet [3.4K]2 years ago
6 0

(-4x+12)^{1/2}=x\\\sqrt{-4x+12}=x\\\\D:-4x+12\geq0\wedge x\geq0\\D:4x\leq12\wedge x\geq0\\D:x\leq3\wedge x\geq0\\D:x\in\langle0,3\rangle\\\\\sqrt{-4x+12}=x\\-4x+12=x^2\\x^2+4x-12=0\\x^2-2x+6x-12=0\\x(x-2)+6(x-2)=0\\(x+6)(x-2)=0\\x=-6 \vee x=2\\\\-6\not \in D\\\\\boxed{x=2}

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Points M and N on the coordinate grid below show the positions of two midfield players of a soccer team:Which statement best des
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<u>Step-by-step explanation:</u>

In question no statements are available , below statements are the required one:

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  2. N is M reflected across the x-axis; only the signs of the y-coordinates of M and N are different: N-M is reflected over y-axis not x-axis , so this option is also wrong.
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