x^2 - 7x - 30
a = 1 b = 7 c = 30
a x c = ?
1 x -30 = -30
factors of -30 that could equal, if you add them, -7
in this case it is -10 and 3
(x+3) (x + 10)
I heard that he is happy.
On your keyboar it is: /
It could be a song, insult, or care.
237+576= 813
Apple
Yes. For example -1/-1 equals 1
3x + 2y = 20 x = 3
substitute for x
3(3) + 2y = 20
multiply
9 + 2y = 20
subtract on both sides.
(9 - 9) + 2y = (20 - 9)
simplify
2y = 11
divide bothe sides by 2
2y/2 = 11/2
Evaluate 11/2 into a mix number
y = 5 1/2
y = five and one half.
Answer: 3/3 since they have the same numerator and denominator you can simplify it down to 1.
