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Greeley [361]
2 years ago
13

Help

Mathematics
2 answers:
zalisa [80]2 years ago
6 0
<h2>♪Answer : </h2>

Ingat rumus determinan fungsi kuadrat yaitu :

\longmapsto\boxed{\sf{D = b^2 - 4ac}}

Maka, Kita kembali jawab soalnya.

⏩Nomor (1) :

»8x² + 7x + 10 = 0

Didapatkan nilai² a, b, dan c yaitu :

  • a = 8 | b = 7 | c = 10

Maka, nilai determinannya adalah

  • D = b² - 4ac
  • D = 7² - 4(8)(10)
  • D = 49 - 4(80)
  • D = 49 - 320
  • D = -271✅

\:

⏩Nomor (2) ;

»2x² + 10x + 10 = 5

»2x² + 10x + 10 - 5 = 0

»2x² + 10x + 5 = 0

Didapatkan nilai² a, b, dan c yaitu :

  • a = 2 | b = 10 | c = 5

Maka, nilai determinannya adalah

  • D = b² - 4ac
  • D = 10² - 4(2)(5)
  • D = 100 - 4(10)
  • D = 100 - 40
  • D = 60✅
horrorfan [7]2 years ago
4 0

\\ \rm\hookrightarrow 8x^2+7x+10=0

Determinant be D

\\ \rm\hookrightarrow D=b^2-4ac

\\ \rm\hookrightarrow D=7^2-320

\\ \rm\hookrightarrow D=49-320

\\ \rm\hookrightarrow D=-271

#2

\\ \rm\hookrightarrow 2x^2+10x+10=5

\\ \rm\hookrightarrow 2x^2+10x+5=0

\\ \rm\hookrightarrow D=10^2-40

\\ \rm\hookrightarrow D=100-40

\\ \rm\hookrightarrow D=60

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