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70 POINTS!!!! PLEASE HELP!! I WILL MARK. BRAINLIEST!!

Write the trinomial as a square of a binomial or as an expression opposite to a square of a binomial:

a. 4cd –25c^2–0.16d^2


b. –0.49x^2–1.4xy –y^2

Respuesta :

4cd-25c^2-0.16d^2=  -1 • (25c - 2d)2
  ————————————————
         25      



a. 4cd-25c²-0.16d²
-(5c-0.4d)²

b. -0.49x²-1.4xy-y²
-(0.7x+y)²

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