Bonjour,
= 3(x² + 4x) + 27
= 3[(x + 2)² - 4] + 27
= 3(x + 2)² - 12 + 27
= 3(x + 2)² + 15
Bonsoir
3x^2+12x+27 = 3(x^2 +4x)+27 = 3(x+ 2)^2 - 4 +27
= 3(x + 2)^2 -12 +27
= 3(x +2)^2 +15
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Verified answer
Bonjour,
= 3(x² + 4x) + 27
= 3[(x + 2)² - 4] + 27
= 3(x + 2)² - 12 + 27
= 3(x + 2)² + 15
Verified answer
Bonsoir
3x^2+12x+27 = 3(x^2 +4x)+27 = 3(x+ 2)^2 - 4 +27
= 3(x + 2)^2 -12 +27
= 3(x +2)^2 +15