Question

mohon bantuannya kakk dan sertakan caranya yahh​

Answer 1

Jawaban:

Penyelesaian :

f(x) = 2x² + 4x - 30

• a = 2
• b = 4
• c = -30

Nilai minimum

[tex] \sf y = - \frac{D}{4a} [/tex]

[tex] \sf y = - \frac{ {b}^{2} \: - \: 4ac }{4a} [/tex]

[tex] \sf y = - \frac{ {4}^{2} \: - \: 4(2)( - 30)}{4(2)} [/tex]

[tex] \sf y = - \frac{16 \: - \: 8( - 30)}{8} [/tex]

[tex] \sf y = - \frac{16 \: + \: 240 }{8} [/tex]

[tex] \sf y = - \frac{256}{8} [/tex]

[tex] \sf y = \red{ - 32}[/tex]

'조슈아' (Svt)