Answer:
Step-by-step explanation:
(3x - 2)(x - 5)
3x² - 17a + 10
3x · x = 3x²
3x · -5 = -15x
-2 · x = -2x
-2 · -5 = 10
i honestly have no idea:(
sorry
Answer:155
If a=3 and b=5 then
3•5/15+3•6+7•5=155