Answer:
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Like terms 3x, 2x
Different terms 4y, 7z
Step-by-step explanation:
Example similar terms
3x + x = 5x
Example different terms
4 years + 7z
Answer:
Step-by-step explanation:
Supplementary angles
x+20+5x+10=180
6x+30=180
6x=150
x=25
In this case it is to find the roots of the polynomial.
We have then:
2x ^ 2-5x + 1 = 3
Rewriting:
2x ^ 2-5x-2 = 0
Applying resolver we have
x = (- b +/- root (b ^ 2 - 4ac)) / (2a)
Substituting values:
x = (- (- 5) +/- root ((- 5) ^ 2 - 4 (2) (- 2))) / (2 (2))
x = (- (- 5) +/- root ((25 + 16)) / (2 (2))
x = (5 +/- root (41))) / (4)
x = ((5/4) +/- (root (41)) / 4)
Answer:
x = ((5/4) +/- (root (41)) / 4)
(option 4)