1st: toute valeur de x rend I'<span>équation vraie
tous les nombres r</span><span>éels
2nd: r</span><span>ésoudre l'équation pour x en trouvant a, b et c du quadratique puis en appliquant la formule quadratique
x = 2 ± i</span>
Answer:
No.
Step-by-step explanation:
Answer: I would be able to help if it were in English
Step-by-step explanation:
Answer:
The answer is -1\4
Step-by-step explanation:
because its negative you can't expect it to be positive 1\4 and its the only one that made sense
Let's plug in (18,10) into each answer choice until we find the one that has it as a solution.
A) 2x - y = 26
2(18) - 10 = 26
36 - 10 = 26
26 = 26
Your answer is A.
I'll just do the rest to show that you the they are incorrect.
B) x + y = 18
18 + 10 = 18
28 ≠ 18
C) 2x - 2y = 36
2(18) - 2(10) = 36
36 - 20 = 36
16 ≠ 36
D) x - y = -28
18 - 10 = -28
8 ≠ -28
Your answer is A) 2x - y = 26.