The equation for which square method is possible is x²-8=1
Step-by-step explanation:
For checking which of the equation satisfies the complete square condition, we proceed by checking each of the available options
1). x²+20x=52
Rewriting it as x²+20x-52
This binomial expression is not a perfect square since the product of the coefficient of x²(i.e. 1) and independent constant (i.e. 52) is not a perfect square.
2). 5x² + 3x = 9
This equation can be rearranged as 5x²+3x-9=0
This binomial expression is not a perfect square since the product of the coefficient of x²(i.e. 5) and independent constant(i.e. 9) is not a perfect square.
3.) x² −8=1
This equation can be rearranged as x²=9
Hence x= ±3
This binomial expression is a perfect square and can be done by the square method.
4). 3x² −x+17=0
This binomial expression is not a perfect square since the product of the coefficient of x²(i.e. 3) and independent constant(i.e. 17) is not a perfect square.
Answer:
10
Step-by-step explanation:
( 2 + 3 ) × 2
5 × 2 = 10
Answer: y= -1/3x+1
Explanation:
we can take any points from graph that intersect with the line and find the slope.
take (3,0) (0,1)
to find the slope subtract y-es and x-es
1-0/0-3
-1/3 is the slope
y=kx+b is the form of linear equation, where k is the slope,
hence,
y=-1/3x+b
put any points from the line to this equation.
for example - (3,0)
0=-1/3*3+b
1=b ( b is y intercept)
so our equation is
y=-1/3x+1
Hipe it helps! if you have questions, you can ask!:):)
The length of the side joining points (-3, -1) and (1, 3) is given by
The length of the side joining points (1, 3) and (3, 1) is given by
The area of a rectangle is given by length times width.
Thus, the area of the given rectangle is given by
