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Q: How do you solve 5x2 equals 3?

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its 10

5x2 + 15x = 0 5x(x + 3) = 0 therefore, x = 0 or x + 3 = 0 that is, x = 0 or x = -3

X= (3/5 , -2)

1) 5x2-55=90 +55 +55 2) 10x=145 /10 /10 x=14.5

5x2-8x-4

x2 • (5x2 + x + 8)

5x2=8x Divide with x on both sides5x= 8 Solve xx=8/5

-5x2 = -75 x2 = 25 x = ±sqrt( 25 ) x = ±___

10 + 14x - 3 is pretty much the same thing as 7 + 14x. You can't solve this problem without knowing what x is or what the equation equals out to. For example, if 10 + 14x - 3 = 21, x would equal 1.

Assuming that the 2 in "5x2" is a power (5x2), then no, this is not a linear equation. It is a parabolic equation.

5x2=10...take 5 two times..5+5=10

No.

5*2-3x-1 = 0 10-3x-1 = 0 -3x = 1-10 -3x = -9 x = 3

its not...

5x2-2x = 0 x(5x-2) = 0 Therefore: x = 0 or x = 2/5

5x2 + 2x - 3 = 0 5x2 + 5x - 3x - 3 = 0 5x(x + 1) - 3(x + 1) = 0 (5x - 3)(x + 1) = 0 So 5x - 3 = 0 or x + 1 = 0 ie x = 3/5 or x = -1

3x4-7x3+5x2-3x+6

5x2 - 136 = 44 5x2 - 136 + 136 = 44 + 136 5x2 = 180 5x2/5 = 180/5 x2 = 36 âˆšx2 = âˆš36 x = Â±6

3

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.

x = 3 and y = 3 Form a simultaneous equation and solve by elimination.

6 + 10 = 16

(5x - 1)(x + 3)5x2 + 14x - 3= 5x2 + 15x - x - 3= 5x(x + 3) - 1(x + 3)= (5x - 1)(x + 3)

3

3