What is the solution to the following equation? x^2-3x-10=0
2 answers:
Answer:
A= x=5 or x=-2
Step-by-step explanation:
x^2-3x-10=0
Factor
What 2 numbers multiply together to give you -10 and add together to give you -3
-5*2 = -10
-5+2 = -3
(x-5) (x+2) =0
Using the zero product property
x-5 =0 x+2 =0
x-5+5=0+5 x+2-2=0-2
x=5 x=-2
x^2 - 3x -10 = 0
Find two numbers when added together = -3 and when multiplied = -10
-5 + 2 = -3
-5 * 2 = -10
Now write the factored form of the equation:(x-5) (x+2) = 0
Solve for each x so that the equation = 0:
5 -5 = 0
-2 + 2 = 0
So X = -2 or 5
The answer is A.
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25%
Step-by-step explanation:
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Answer:
omg Thank u so much ur so nice
the correct answer is 3249 sorry i took so long
Step-by-step explanation:
Volume= [(20+20) x (20+20) x 100] - (20 x 20 x 100)
=120000cm^3
surface area= 2 x 40 x 100 + 2 x (40 x 40 - 20 x 20) + 4 x 20 x 100
=18400cm^2
