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ajaymatthew15
28.01.2021 •
Mathematics
Which number line shows the solution of 5x- 25 <-15
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Ответ:
I would say C is correct.
Step-by-step explanation:
Hope this helps you and have a wonderful day:)
Ответ:
The value of x is
or ![x=-8](/tpl/images/0467/6864/7757b.png)
Step-by-step explanation:
The expression is![x^{2} +8x=0](/tpl/images/0467/6864/0855c.png)
To complete the square, the equation is of the form![ax^{2} +bx+c=0](/tpl/images/0467/6864/2423f.png)
The constant term c can be determined using,![c=\left(\frac{\frac{b}{a}}{2}\right)^{2}](/tpl/images/0467/6864/317ef.png)
Rewriting the expression
and factoring the trinomial, we have,
Taking square root on both sides, we get,
Either,
Thus, the value of x is
or ![x=-8](/tpl/images/0467/6864/7757b.png)