girlwithbrain247 girlwithbrain247
  • 11-09-2020
  • Mathematics
contestada

Hi can someone tell me how is the answer 113?? how do i type it in the calculator?? im confused can someone please explain ASAP!!!!!!!!

THANK YOU

Hi can someone tell me how is the answer 113 how do i type it in the calculator im confused can someone please explain ASAP THANK YOU class=

Respuesta :

Wolfyy
Wolfyy Wolfyy
  • 11-09-2020

You shouldn't need a calculator for this. The quadratic equation is written in standard form.

ax^2 + bx + c = 0

You substitute a, b, and c into the discriminant formula and solve as shown in the example in the picture you provided.

(-7)^2 - 4(2)(-8)

49 - 4(-16)

49 - (-64)

49 + 64

113

Best of Luck!

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