Answer:
(3x² - 2)(x² + 5)
Step-by-step explanation:
Given
3 - 2x² + 15x² - 10
Factor the first/second and third/fourth terms
= x²(3x² - 2) + 5(3x² - 2) ← factor out (3x² - 2) from each term
= (3x² - 2)(x² + 5)
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Girls;
Total number of girls who tried out = 30
Number of girls who got selected = 12
Ratio of girls on team to girls who tried out =
= 2 : 5
Boys;
Total number of boys who tried out = 40
Number of boys who got selected = 16
Ratio of boys on team to boys who tried out =
= 2 : 5
Hence, the ratios are the same.
Total number of girls who tried out = 30
Number of girls who got selected = 12
Ratio of girls on team to girls who tried out =
Boys;
Total number of boys who tried out = 40
Number of boys who got selected = 16
Ratio of boys on team to boys who tried out =
Hence, the ratios are the same.