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Pie
3 years ago
7

How do I factor 25-(z+5)^2

Mathematics
1 answer:
loris [4]3 years ago
7 0
25-(2+5)(2+5)
25- 4+10+10+25
=66
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The value of x is? What is the value of x in this problem?
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Answer:

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For the upper left angle, we know that they are supplementary, so we can find the first angle of the triangle by

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3 years ago
Sergey is solving 5x2 + 20x – 7 = 0. Which steps could he use to solve the quadratic equation by completing the square? Select t
olya-2409 [2.1K]

Answer:

Step-by-step explanation:

\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}\\x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}\\\mathrm{For\:}\quad a=5,\:b=20,\:c=-7:\quad x_{1,\:2}=\frac{-20\pm \sqrt{20^2-4\cdot \:5\left(-7\right)}}{2\cdot \:5}\\x=\frac{-20+\sqrt{20^2-4\cdot \:5\left(-7\right)}}{2\cdot \:5}:\quad \frac{-10+3\sqrt{15}}{5}\\x=\frac{-20-\sqrt{20^2-4\cdot \:5\left(-7\right)}}{2\cdot \:5}:\quad -\frac{10+3\sqrt{15}}{5}\\

\mathrm{The\:solutions\:to\:the\:quadratic\:equation\:are:}\\x=\frac{-10+3\sqrt{15}}{5},\:x=-\frac{10+3\sqrt{15}}{5}

7 0
3 years ago
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What’s the correct answer for this?
cricket20 [7]
Honestly don’t know
4 0
3 years ago
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