What is 80 percent of 60. write and solve a proportion. thank you
2 answers:
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Answer:
p = , q = 9
Step-by-step explanation:
4x² + 12x ( factor out 4 from each term )
= 4(x² + 3x)
Using the method of completing the square
add/subtract ( half the coefficient of the x- term)² to x² + 3x
= 4(x² + 2( )x +
-
)
= 4(x + )² - 4 ×
= 4(x + )² - 9