(2a-5b)^ 2 =? 1 4a² 4a ^ 2 – 10ab + 25 2 4a ^ 2 + 10ab + 253 4a^2- 10ab – 25 4 4a² + 10ab – 25 About the author Adalyn
[tex]\boxed{\pink{answer \: \: \: \: \: \: = \: \: \: \: 4a² – 20ab + 25b²}}[/tex] (2a – 5b) ² = (2a)² – 2×2a×5b + (5b)² = 4a² – 20ab + 25b² Reply
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[tex]\boxed{\pink{answer \: \: \: \: \: \: = \: \: \: \: 4a² – 20ab + 25b²}}[/tex]
(2a – 5b) ² = (2a)² – 2×2a×5b + (5b)²
= 4a² – 20ab + 25b²