Answer:
C.)
Step-by-step explanation:
4x -20x -5b -x +2=-17x -8
-17x-5b+2=- 17x-8
+17x +17x
-5b +2= -8
-2 -2
-5b = -10
b= 2
hello : <span>
<span>the discriminat of each quadratic equation :
ax²+bx+c=0 ....(a ≠ 0) is :
Δ = b² -4ac
1 ) Δ > 0 the equation has two reals solutions : x1,2 =
(-b±√Δ)/2a</span></span>
factoring :
<span>ax²+bx+c = a(x-x1)(x-x2)
2 ) Δ = 0 : one solution : x1 = x2 = -b/2a</span>
factoring :
<span>ax²+bx+c = a(x-x1)²
3 ) Δ < 0 : no reals solutions... no </span>
<span>factoring </span>
The answer is A,E,G,L,D,and H.
You can check this by doing this:
This is for A
16*4=84
12*7=64
84+64=148
The integers are x, x + 2 and x + 4
x + x + 2 + x + 4 = 36
3x + 6 = 72
3x = 36 - 6 = 30
x = 30/3 = 10
The least numbers is 10
Therefore, the numbers are 10, 12 and 14