Answer:
x = (1/2) (-9 ± √73)
Step-by-step explanation:
Using completing the square method
x²+9x+2=0
x²+9x = -2 (complete the square by adding (9/2)² to both sides)
x²+9x + (9/2)² = -2 + (9/2)²
( x + (9/2) )² = -2+ (9/2)²
( x + (9/2) )² = -2+ (81/4)
( x + (9/2) )² = 73/4
x + (9/2) = ± √(73/4)
x + (9/2) = ± √(73) / 2
x = -(9/2) ± √(73) / 2 (factorize out (1/2) )
x = (1/2) (-9 ± √73)
Answer: just multiply all sides with a calculator, that easy
Step-by-step explanation: or do you need help with solving it?
Answer:
672
Step-by-step explanation:
Multiply 42 by 16 and u get 672
A rectangle and two triangles
The correct answer is the larger one is 30 and the smaller one is 12 because 42-18 gives you 24 so you do 24/2 you get 12 so you add 18 to one of the 12s and you get the answer as 12 and 30
