0
x2 +7x = 30
x2 +7x - 30 = 0
(x + 10)(x - 3) = 0
Now: x + 10 = 0 or x - 3 = 0
So: x = -10 or x = 3
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
8x plus 30 equals 4x plus 18 solve for x?
8x+30=4x+18 -4x -4x 4x+30=18 -30 -30 4x=-12 4x/4=-12/4 x=-3
How do you solve the equation 2x plus 30 equals equals 12x-50?
Subtract 2x from each side: 30 = 10x - 50;Add 50 to each side: 80 = 10xDivide each side by 10: 8 = x
What is x plus 30 equals 64?
x + 30 = 64 Therefore, x = 64 - 30 x = 34
What is the answer to 4x plus 6x equals 30?
4x+6x=30 is the same as: 10x=30 so we divide by 10 and get: x=3 (I do not see how this relates to calculus, but O.K.)
How do you solve 5X plus y equals -12 7X -3y equals -30 by elimination method?
(1) 5x+y=-12 (2) 7x-3y=-30 From (1) one gets y = -12-5x Put into (2) 7x-3y = 7x -3 (-12-5x) = 7x + 36 +15 x = 22x +36=-30 22x = -30-36 = -66 so x = -3 and y=-12-5x = -12-5x-3= 3 The solution is (-3,3)
What is the diagonal of a 30-inch square box?
'A' squared plus 'B' squared equals 'C' squared. If 'A' and 'B' are the legs of the right angle comprising the sides of the box, 30 inches squared (900) plus 30 inches squared (900) equals 1800. The square root of 1800 is 42.426408711929.
Assuming A squared plus b squared equals c squared and a equals 10 and b equals 30 what is c?
C equals the square root of 1000 or 31.622776601683793319988935444327...
What number squared equals 30?
5.477225575 squared equals 30.
How do you solve 7x plus 3y equals 30 -2x plus 3y equals 3 in an order pair?
(3,3)
If 30 plus 7 equals 37 how does that help you solve 37 plus 23?
It does not help you.
Is x squared plus 7x-30 equals 0 a linear equation?
No, It's a a quadratic equation because you have X squared.
Solve 45 equals 30 plus m?
45 = 30 + m Subtract 30 from both sides: 15 = m
What is 30 squared plus B squared equals 78 squared?
First you square root everything on both sides to cancel the squares. 30+B=78 Then subtract 30 from both sides to get B=48. So the answer is B=48
50 plus what equals 180?
To solve this one, subtract 50 from 180 and you'll have your answer.
How do you solve 11a plus 9 equals 4a plus 30?
11a+9 = 4a+30 11a-4a = 30-9 7a = 21 Solution: a = 3
30 squared plus 16 squared equals x squared?
30 squared is 900. 16 squared 256. add them and you get 1156. Now, simply do: √1156 The answer is 34. Its simple: (30•30)+(16•16)=x^2 900+256=x^2 1156=x^2 √1156=x 34=x
How do you solve 2v plus 11 equals -19 for v?
v is -15... -15*2 = -30... -30+11= -19.
