First of all, you have to know what you're looking for ... a number that you can
put in place of 'x' and make the whole statement true. There's only one number
that will work.
-4 + 7 = 5x - 2
Combine the numbers on the left side:
3 = 5x - 2
Add 2 to each side of the equation:
5 = 5x
Divide each side by 5:
1 = x
Assuming that the 2 in "5x2" is a power (5x2), then no, this is not a linear equation. It is a parabolic equation.
The discriminant is 385.
I am assuming the question is to factor this problem? 5x2 + 29x - 6 (5x - 1)(x + 6)
Yes
18 because, 5x2=10 10+8=18! Your welcome. It's not a problem at all. I love math!
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
False
6x2-2x+36 = 5x2+10x 6x2-5x2-2x-10x+36 = 0 x2-12x+36 = 0 (x-6)(x-6) = 0 x = 6 or x = 6 It has two equal roots.
Two. x = + i sqrt(8.4) x = - i sqrt(8.4)
5x2+7x = 12 5x2+7x-12 = 0 (5x+12)(x-1) = 0 x = -12/5 or x = 1
5x2 + 15x = 0 5x(x + 3) = 0 therefore, x = 0 or x + 3 = 0 that is, x = 0 or x = -3
5x2 + 9x + 4 = (x + 1)(5x + 4).