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Mathematics
Blaze Mckinney
29 February, 20:43
How do I expand 3x (2-10x)
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Denise Hanson
29 February, 23:47
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(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
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Milagros Kent
1 March, 00:18
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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
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