amira1196 amira1196
  • 25-02-2019
  • Mathematics
contestada

what is -4x^2+4x+7; x=-5

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akephd
akephd akephd
  • 25-02-2019
Substitute-5 for x.
-4*-5^2+4(-5)+7=
-4(25)-20+7=
-100-20+7=
-120+7=
-113
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lunarfox270p16yqz
lunarfox270p16yqz lunarfox270p16yqz
  • 25-02-2019
-113 hope this helps
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