daivikraj872 daivikraj872
  • 01-02-2020
  • Mathematics
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Please help ASAP!

Simplify the expression: 16a^2–3(2–5a)^2−10

Respuesta :

danielzgame
danielzgame danielzgame
  • 01-02-2020

Answer:

-59a^2 + 60a - 22

Step-by-step explanation:

Remember the formula: (a-b)^2 = (a^2 - 2ab + b^2)

Expand the parentheses: (2-5a)^2

(4 - 20a + 25a^2)

Add it back into the expression and distribute the 3.

16a^2 - 3 (4 - 20a +25a^2) -10

16a^2 - 12 + 60a - 75a^2 -10

Combine like terms

-59a^2 + 60a - 22

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