Answer:
The roots are real and unequal (3, -3)
Step-by-step explanation:
x²-9=0
ax²+bx+c=0
Comparing we get,
a= 1
b= 0
c = -9
Determinant: b²-4ac
= 0² - 4(1)(-9)
= 36>0
D > 0
Therefore, the equation has real and unequal roots.
Algebraic identity:
x² - a² = (x-a)(x+a)
Using this identity
x²-9 = (x+3)(x-3)
Roots are 3 and -3 which are real and not equal to each other
Hope this answer helps you ..
<h2>
The factoring the GCMF of 12y - 16 = 4(3y - 4)</h2>
Step-by-step explanation:
We have,
12y - 16
To find, the factoring of GCMF of 12y - 16 = ?
∴ 12y - 16
The factors of 12 = 1, 2, 3, 4, 6 and 12 and
The factors of 16 = 1, 2, 4, 8 and 16
The greatest common multiple factor(GCMF) = 4
12y - 16
= 4(3y - 4)
∴ The factoring the GCMF of 12y - 16 = 4(3y - 4)
Thus, the factoring the GCMF of 12y - 16 is 4(3y - 4).
Answer:
The x-intercepts are: -0.5 and 2.
Step-by-step explanatio
Answer:
1:5
Step-by-step explanation:
He rode one mile in 5 minutes because 4/4 is 1 and 20/4 is 5
