Answer:
y = -1/2x^2 -5x -45/2
Step-by-step explanation:
Multiply it out and collect terms.
y = -1/2(x^2 +10x +25) -10 . . . . . expand the square
y = -1/2x^2 -5x -25/2 -20/2 . . . eliminate parentheses
y = -1/2x^2 -5x -45/2 . . . . . . . . collect terms
Answer:
the correct option is<u> d) 72</u>
Step-by-step explanation:
The given expression is 
first multiply numerator and then solve the fraction


solve the fraction,

∴The equivalent expression of
is 72
Hence, the correct option is<u> d) 72</u>
Answer:
( x - 6 )² - 35
Step-by-step explanation:
x² - 12x + 1
→ Half the middle term and place it inside the bracket
( x - 6 )² + 1
→ Square it
( x - 6 )² - 36 + 1
→ Simplify
( x - 6 )² - 35