Respuesta :
Answer:
(3x + 5)^2 expands into two binomials: (3x + 5)(3x +5)
from there, you foil them:
(3x + 5)(3x + 5)
multiply the first terms ... 9x^2
the inside terms ... 9x^2 + 15x
outside terms ... 9x^2 + 15x + 15x
last terms ... 9x^2 + 15x + 15x + 25
then add like terms ... 9x^2 + 30x + 25
Answer:
6x - 30x²
Step-by-step explanation:
multiply each term in the parenthesis by the 3x outside
3x(2 - 10x)
= (3x × 2) + (3x × - 10x)
= 6x + (- 30x²) = 6x - 30x²