The difference of the square of a number and 4 is equal to 3 times that number. Find the negative solution.

The negative solution is x = –1.

Solution:

Let the number be x.

Square of a number = x²

3 times a number = 3x

Difference of square of a number and 4 = 3 times that number

Subtract 3x from both sides of the equation, we get

–3x can be written as x – 4x.

1st bracket have common term x and bracket have –4 common term.

Take common term x + 1 outside.

By zero factor principle, if AB = 0 then A = 0 or B = 0.

x + 1 = 0,   x – 4 = 0

x = –1,   x = 4

The negative solution is x = –1.

.632

step-by-step explanation:

6 * 1/10 = 3/5

3*0.01 = 0.03

3/5 + 0.03 = .63

2*0.002 = .002

.63 + 0.002 = .632

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step-by-step explanation: