Solutions of x2 + 13x + 30 = 0 by factoring.

x = -10 or x = -3

Step-by-step explanation:

Here, the given equation is

The given equation can be solved by the method of SPLITTING THE MIDDLE TERM

Split 13 in such a way that sum of the terms = 13

and product of the terms = 30

So, the given equation becomes

Here, 10x+ 3x = 13x and 10 x 3 = 30

Now, simplifying the equation,

⇒ either (x+ 10) = 0 ,or (x+ 3) = 0

⇒ x = -10 or x = -3

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

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step-by-step explanation: