4.) 3x² - 6x + p = 0 memiliki akar akar real dan kembar nilai p = ...
D= 0b² - 4ac = 0(-6)² - 4(3)(p) = 036 - 12p = 0p= 3
5.) f(x) = 3x² + 18x + 27. sumbu simetri parabola nya adalah..
x = - b/2ax= - (18)/ 2(3)x= - 18/6x= - 3
6.) f(x) = 3x² + 18x - 21. nilai minimum nya adalah..
y = - D/4ay = -(18² - 4(3)(21) )/ 4(3)y = -(72)/(12)y = - 6
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4.) 3x² - 6x + p = 0 memiliki akar akar real dan kembar nilai p = ...
D= 0
b² - 4ac = 0
(-6)² - 4(3)(p) = 0
36 - 12p = 0
p= 3
5.) f(x) = 3x² + 18x + 27. sumbu simetri parabola nya adalah..
x = - b/2a
x= - (18)/ 2(3)
x= - 18/6
x= - 3
6.) f(x) = 3x² + 18x - 21. nilai minimum nya adalah..
y = - D/4a
y = -(18² - 4(3)(21) )/ 4(3)
y = -(72)/(12)
y = - 6