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Sidana [21]
3 years ago
7

Factor the expression. x squared plus 7 x plus 10

Mathematics
1 answer:
umka2103 [35]3 years ago
6 0

Answer:

<u>x² + 7x + 10 = (x + 2) (x + 5)</u>

Step-by-step explanation:

Given: x squared plus 7 x plus 10

The algebraic expression is ⇒ x² + 7x + 10

To factor the expression, we need to find two numbers, their product = 10

and their sum = 7

Factor the number 10

10 = 1 * 10  ⇒ 1 + 10 = 11

10 = 2 * 5  ⇒ 2 + 5 = 7

So, the numbers are 2 and 5

<u>So, x² + 7x + 10 = (x + 2) (x + 5)</u>

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Aleks04 [339]

Answer:

x = 5.4

Step-by-step explanation:

(This question has already been answered, but both of the incorrect ones were deleted, so for future reference...)

Fig A is a scale image of Fig D. These two quadrilaterals are similar, and thus, the side lengths of corresponding sides are proportional. Set the proportion x/3 = 7.2/4 (you could alternatively write it as x/7.2 = 3/4 but for the simplicity's sake, and assuming anyone who has this problem would already know how to solve proportions like these...)

7.2/4 = 1.8

so

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4 0
3 years ago
Factor 16x^2 + 49. Check your work.
Shtirlitz [24]

Answer:

16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})

Step-by-step explanation:

Given : Expression 16x^2+49

To find : Factor the expression ?

Solution :

The given expression is a quadratic function y=ax^2+bx+c the solution is x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

On comparing with general form,

a=16, b=0, c=49

Substitute in the formula,

x=\frac{-0\pm\sqrt{0^2-4(16)(49)}}{2(16)}              

x=\frac{\pm\sqrt{-3136}}{32}          

x=\frac{\pm56i}{32}      

x=\frac{56i}{32},\frac{-56i}{32}      

x=\frac{7i}{4},\frac{-7i}{4}              

Factors are (x-\frac{7i}{4}),(x+\frac{7i}{4})        

Therefore, 16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})    

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4 years ago
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Answer:

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Step-by-step explanation:

5 0
3 years ago
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3 years ago
What is the value of x in the figure shown below?
satela [25.4K]

50?

I'm assuming 50 because the angles to a triangle always adds up to 180 and this one has 130 and 130+50=180

4 0
2 years ago
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