anonymous
  • anonymous
factor this 15=8x^2-14x
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
ok, so first you must subtract 15 on both sides, to get the three terms: 15=8x^2-14x 0=8x^2-14x-15
anonymous
  • anonymous
\[0=8x^2-14x-15 \]
anonymous
  • anonymous
ill brb

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anonymous
  • anonymous
what e thos pic mathfreak
anonymous
  • anonymous
ok, sorry im back
anonymous
  • anonymous
so now we have to sind a value that when multiplied, it equals -15.
anonymous
  • anonymous
the only two numbers that could equal -15, would be -3*5, or -5*3
anonymous
  • anonymous
lets first try 3*-5 (4x+3)(2x-5) next we multiply it out and see if we get back to our original problem. :15=8x^2-14x
anonymous
  • anonymous
(4x+3)(2x-5) 8x^2-20x+6x-15 8x^2-14x-15. we know this is right, because we got back to:8x^2-14x-15
anonymous
  • anonymous
so (4x+3)(2x-5) is the right answer
anonymous
  • anonymous
when we multiply that out, we get : x^2+2x-3. which means this is right. remember how we divided -6x^2? well this is when we put it back. so the final factored answer is: -6x^2(x^2+2x-3)
anonymous
  • anonymous
sorry, wrong place

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