(1-2a)(1-5a)=

Solution for (1-2a)(1-5a)= equation:

Simplifying
(1 + -2a)(1 + -5a) = 0

Multiply (1 + -2a) * (1 + -5a)
(1(1 + -5a) + -2a * (1 + -5a)) = 0
((1 * 1 + -5a * 1) + -2a * (1 + -5a)) = 0
((1 + -5a) + -2a * (1 + -5a)) = 0
(1 + -5a + (1 * -2a + -5a * -2a)) = 0
(1 + -5a + (-2a + 10a2)) = 0

Combine like terms: -5a + -2a = -7a
(1 + -7a + 10a2) = 0

Solving
1 + -7a + 10a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(1 + -5a)(1 + -2a) = 0

Subproblem 1
Set the factor '(1 + -5a)' equal to zero and attempt to solve:

Simplifying
1 + -5a = 0

Solving
1 + -5a = 0

Move all terms containing a to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + -5a = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -5a = 0 + -1
-5a = 0 + -1

Combine like terms: 0 + -1 = -1
-5a = -1

Divide each side by '-5'.
a = 0.2

Simplifying
a = 0.2
Subproblem 2
Set the factor '(1 + -2a)' equal to zero and attempt to solve:

Simplifying
1 + -2a = 0

Solving
1 + -2a = 0

Move all terms containing a to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + -2a = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -2a = 0 + -1
-2a = 0 + -1

Combine like terms: 0 + -1 = -1
-2a = -1

Divide each side by '-2'.
a = 0.5

Simplifying
a = 0.5
Solution
a = {0.2, 0.5}