anonymous
  • anonymous
what do i do to get x = 0 or x = 9 from here x2 + 9x = 0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Factor out a common term.
anonymous
  • anonymous
question
anonymous
  • anonymous
?

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anonymous
  • anonymous
is it (x - 9)(x + 9)
anonymous
  • anonymous
No, if you FOIL those terms you will get \(x^2-81\). There is a single factor that is common to both terms. \(x^2+9x\)
anonymous
  • anonymous
i'm confused
anonymous
  • anonymous
What is \(x \times x\)?
anonymous
  • anonymous
x^2
anonymous
  • anonymous
What is \(9 \times x\)?
anonymous
  • anonymous
so is it (x + 3)(x - 3)
anonymous
  • anonymous
Nope. If you FOIL those factors you will get \(x^2-9\). Not quite what you are looking for. You may be over thinking it. What is \(9\times x\)?
anonymous
  • anonymous
(x + 3)^2
anonymous
  • anonymous
You are jumping ahead. Answer my questions and you will see a pattern.... \(x\times x=x^2\) What is \(9 \times x\)?
anonymous
  • anonymous
9x
anonymous
  • anonymous
Great! So... \(x\times x = x^2\) \(9 \times x = 9x\) The factors are on the left and the product is on the right. What factor does each term have?
anonymous
  • anonymous
factor \(\times \) factor = product
anonymous
  • anonymous
thx
anonymous
  • anonymous
You're welcome.

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