Answer:
(2x-3) (2x+3)
zeros, x intercepts: -3/2, 3/2
Step-by-step explanation:
4x^2 -9
We know the difference of squares is a^2 -b^2
This factors into (a-b) (a+b)
Let 4x^2 =a^2
Taking the square root
2x =a
Let b^2 =9
Taking the square root
b= 3
(4x^2-9 ) = (2x-3) (2x+3)
To find the zeros, we set the equation equal to zero
(4x^2-9 ) = (2x-3) (2x+3) =0
Using the zero product property
2x-3 =0 and 2x+3 =0
2x-3+3 = 0+3 2x+3-3 = 0-3
2x=3 2x=-3
Divide by 2
2x/2 = 3/2 2x/2 = -3/2
x = 3/2 x = -3/2
These are the zeros of the equation (which are also the x intercepts)
Answer:-2x^2+3x-7=0
Step-by-step explanation:
Answer:
Therefore the greatest number of cookies she can put each bag is 14.
Step-by-step explanation:
Given that Anna has made 30 chocolate chip cookies and 54 sugar cookies.
First we have to find out the number of fried or the number of bags.
So to find the number of bags, We need to find out the G.C.D of 30 and 54.
30=5×3×2
54=3×3×3×2
The common divisor of 30 and 54 is = 3×2 = 6
∴The G.C.D of 30 and 54 is 6.
The number of bags is 6.
The number of chocolate cookies each bags is
=(The number of chocolate cookies÷ 6)
=30÷6
=5
The number of sugar cookies each bags is
=(The number of sugar cookies÷ 6)
=54÷6
=9
Therefore the greatest number of cookies she can put each bag is (5+9)=14.
First we need to find the the answer to both the square root of 49 and 9.
The "square root" is a term referring to a number, multiplied by itself (x • x) would be = to your square root.
So for example: Square root of 16 = 4 because 4*4=16
So lets get out numbers:
Now you multiply 3*7 (or 7*3) and you get 21.
Final answer: 21
Answer:
x = 7
Step-by-step explanation:
5x-4 = 31
5x = 31+4
5x = 35
x = 7
