Answer:
if 4x+5x-2x=42 then the value of x=6
2x + 5 = 2x - 8
Add 8 to each side
2x + 13 = 2x
Subtract 2x from each side
13 = 0 isnt true.
C. No Solution.
Answer:
Step-by-step explanation:
Putting values of x in equation
Y = 4(-3) - 4
= - 12 - 4 = - 16
Y = 4(-2) - 4
= - 8 - 4 = - 12
Y = 4(-1) - 4
= - 4 - 4 = - 8
Y = 4(0) - 4
= 0 - 4 = - 4
Y = 4(1) - 4
= 4 - 4 = 0
Y = 4(2) - 4
= 8 - 4 = 4
Y = 4(3) - 4
= 12 - 4 = 8
X^2+4x=-3
x^2+4x+3=0
(x+1)(x+3)=0
x+1=0 so x=-1
x+3=0 so x=-3
so the solution is x=-3,-1
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f (x) = a(x - h)2 + k, where (h, k) is the vertex of the parabola. FYI: Different textbooks have different interpretations of the reference "standard form" of a quadratic function.
The standard form of a parabola is y=ax2++bx+c , where a≠0 . The vertex is the minimum or maximum point of a parabola. If a>0 , the vertex is the minimum point and the parabola opens upward. If a<0 , the vertex is the maximum point and the parabola opens downward.
