azerah9721
azerah9721 azerah9721
  • 15-01-2019
  • Mathematics
contestada

How do I expand 3x(2-10x)

Respuesta :

squishymishy102
squishymishy102 squishymishy102
  • 15-01-2019

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 Link
jimrgrant1 jimrgrant1
  • 15-01-2019

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


Answer Link

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