Answer:
x = 7, -5
Step-by-step explanation:
1. Find (ac)
-140
then find factors of 140 which sum is -4
10 + (-14) = -4
then rewrite the equation
Find factors
2x ( x + 5) - 14 ( x + 5)
( x + 5)
then ( 2x - 14)
separate the two of them and make them into quadratic equations,
x + 5 = 0
transpose
x = 0 - 5
= -5
then the other one
2x - 14 = 0
2x = 0 + 14
= 14
divide both sides by 2
x = 7
x = -5 , 7
#CarryOnLearning
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Answers & Comments
Answer:
x = 7, -5
Step-by-step explanation:
1. Find (ac)
-140
then find factors of 140 which sum is -4
10 + (-14) = -4
then rewrite the equation
Find factors
2x ( x + 5) - 14 ( x + 5)
( x + 5)
then ( 2x - 14)
separate the two of them and make them into quadratic equations,
x + 5 = 0
transpose
x = 0 - 5
= -5
then the other one
2x - 14 = 0
transpose
2x = 0 + 14
= 14
divide both sides by 2
x = 7
x = -5 , 7
#CarryOnLearning