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2 years ago

Does someone mind helping me with this problem? Thank you!

Mathematics

2 answers:

Sonbull [250]2 years ago

6 0

Answer:

Step-by-step explanation:

= 12 x^2 - 30 put in ' - 3 ' for 'x'

= 12 ( -3 )^2 - 30

= 12 (9) - 30 = 78

nekit [7.7K]2 years ago

4 0

Answer:

Step-by-step explanation:

Expression:

6(2x² - 5)

Evaluate x = 3 according to the question:

$6 \{2 (- 3) {}^{2} - 5) \}$

Solve this problem, applying PEMDAS.

$6 \{2( - 3 \times - 3) - 5 \}$
$6 \{2(9) - 5 \}$
$6 \{18 - 5 \}$
$6 \{13 \}$
$78$

Hence,the answer to the given expression is 78.

<em>-Regards,</em><em>Hannah </em>:)

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