Solve 2x^2 +16x+50=0

1 answer:

5 0

$2x^2 +16x+50=0\ \ \ \ \ |:2\\\\x^2+8x+25=0\\\\x^2+2\cdot x\cdot4+25=0\ \ \ \ |+4^2\\\\\underbrace{x^2+2\cdot x\cdot4+4^2}_{(a+b)^2=a^2+2ab+b^2}+25=4^2\ \ \ \ \ |-25\\\\(x+4)^2=16-25\\\\(x+4)^2=-9 < 0-NO\ REAL\ SOLUTION$

$COMPLEX\ SOLUTIONS\\\\(x+4)^2=-9\to x+4=\pm\sqrt{-9}\\\\x+4=-3i\ \vee\ x+4=3i\ \ \ \ |-4\\\\x=-4-3i\ \vee\ x=-4+3i$

You might be interested in

Find. What part of 40 is 16?

levacccp [35]

Answer:

40%

Step-by-step explanation:

because convert the fraction 16/40 and the answer is 40%

._.

8 0

3 years ago

Any help please if possible Thank you ❤❤❤

creativ13 [48]

155 - 2⁷ = 27 =3³
155 - 2⁷ = 3³
2⁷ + 3³ =155

5 0

3 years ago

2/9 of the people on the restaurant are adults. If there are 95 more children than adults, how many children are there in the re

yan [13]

A: Adults
C:children
P: people
A= 2/9 P
C= A+95
P= A+C
= 2/9P + 2/9P+95
= 4/9 P+95, add -4/9P for both sides (same terms, same sides:))
P- 4/9P= 95
5/9P= 95
P= 171 people in the restaurant
Adult= 2/9*171= 38 Adults
Children= 38+95= 133 children

7 0

3 years ago

Graph the equation x-y=6

frozen [14]