What is the answer to (5x+2)2+15x+6=0 ?

The answer to (5x+2)2+15x+6=0 is x=-2/5

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(5x+2)2+15x+6=0

(5 x + 2) 2 + 15 x + 6 = 0

x = - \frac{2}{5}

Decimal Notation

x = - 0.4

Solution steps

(5 x + 2) \cdot 2 + 15 x + 6 = 0

Move

6

to the right side

(5 x + 2) \cdot 2 + 15 x = - 6

Expand

(5 x + 2) \cdot 2 + 15 x : 25 x + 4

25 x + 4 = - 6

Move

4

to the right side

25 x = - 10

Divide both sides by

25

x = - \frac{2}{5}

- 7 (3 p - 5) - 8 p = - 5 p - 37

x, x + 4 y - 7 = 0

x, \frac{3 x}{2} + y = 11

3 x + 4 = 5 x - 10

x, 4 x + y = 21