# How do you find the value of the determinant #|(4, 1, 0), (5, -15, -1), (-2, 10, 7)|#?

##### 1 Answer

Jan 19, 2017

#### Explanation:

Expanding using row1 we have;

# = (4){(-15)(7)-(10)(-1)} - (1){(5)(7)-(-2)(-1)} #

# = (4)(-105+10) - (1)(35-2) #

# = (4)(-95)-33 #

# = -380-33 #

# = -413 #