Answer:
-19 y^2 + 18 x y + 13 x^2
Step-by-step explanation:
Simplify the following:
16 x^2 + 15 x y - 19 y^2 - (3 x^2 - 3 x y)
Factor 3 x out of 3 x^2 - 3 x y:
16 x^2 + 15 x y - 19 y^2 - 3 x (x - y)
-3 x (x - y) = 3 x y - 3 x^2:
16 x^2 + 15 x y - 19 y^2 + 3 x y - 3 x^2
Grouping like terms, 16 x^2 + 15 x y - 19 y^2 - 3 x^2 + 3 x y = -19 y^2 + (15 x y + 3 x y) + (16 x^2 - 3 x^2):
-19 y^2 + (15 x y + 3 x y) + (16 x^2 - 3 x^2)
x y 15 + x y 3 = 18 x y:
-19 y^2 + 18 x y + (16 x^2 - 3 x^2)
16 x^2 - 3 x^2 = 13 x^2:
Answer: -19 y^2 + 18 x y + 13 x^2
Answer:
c
Step-by-step explanation:
cwvw
Answer:
{ 
- 
, + }
Step-by-step explanation:
ax² + bx + c = 0
= ( - b ± 
) ÷ 2a
~~~~~~~~~~~
g(x) = 3x - 7
g²(x) = (3x - 7)²
g²(x) = 9x² - 42x + 49
g²( 
) = 9( )² - 42( ) + 49
9( )² - 42( ) + 49 = 8
16k² - 56k + 41 = 0
a = 16 , b = - 56 , c = 41
D = b² - 4ac = ( - 56)² - 4(16)(41) = 512 = 
= ( 56 + √ ) ÷ 32 = +
= -
17^2 - 12^2
289 - 144 = 145
Sqrt of 145 = 12.04159…
The answer rounded to two decimal places is 12.04 cm.
Answer: xp=py
<xpa=<apy
4 right angles are formed
2(xp)=xy
<xpa and <apy are supplements.
Step-by-step explanation:
