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Sphinxa [80]
3 years ago
15

If f(x)=x2-2x and g(x)=6x=4, for which value of x does (f+g)(x)=0

Mathematics
2 answers:
zhenek [66]3 years ago
7 0
X = -2
hope it helps (: 
diamong [38]3 years ago
3 0

Answer:  The required value of x is - 2.

Step-by-step explanation:  We are given the following two functions :

f(x)=x^2-2x,~~~~~g(x)=6x+4.

We are to find the value of x for which (f + g)(x) = 0.

We know that for any two functions p(x) and q(x), the following property holds true :

(p+q)(x)=p(x)+q(x).

We have

(f+g)(x)=0\\\\\Rightarrow f(x)+g(x)=0\\\\\Rightarrow x^2-2x+6x+4=0\\\\\Rightarrow x^2+4x+4=0\\\\\Rightarrow (x+2)^2=0\\\\\Rightarrow x+2=0,~~~x+2=0\\\\\Rightarrow x=-2,~-2.

Thus, the required value of x is - 2.

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Answer:

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Step-by-step explanation:

<u>Given inequality:</u>

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Eduardwww [97]

Answer:

132cm²

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You can find the area of the entire shape by calculating the area of seperate smaller shapes.

You can split them up into 2 rectangles, one with a base of 7cm and height of 4cm, and another one with a base of 7cm and height of 8cm. You also have 2 triangles, with a base of 19cm - 7cm / 2 = 6cm since it is the entire bottom line subtracted by the top; they will have a height of 8cm each.

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Brittany has 50 beads. 70% of the beads are gold. <br>How many beads are gold?
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<h3>How many gold beads are there?</h3>

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