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tresset_1 [31]
3 years ago
13

Factor using ac-method and factor completely, 25x²-30x--40  (help)

Mathematics
2 answers:
Lady bird [3.3K]3 years ago
4 0
25x^2-30x-40=\\
5(5x^2-6x-8)=\\
5(5x^2-10x+4x-8)=\\
5(5x(x-2)+4(x-2))=\\
5(5x+4)(x-2)

jeka57 [31]3 years ago
4 0
Answer :25x^2-30x-40 \\ =5(5x^2-10x+4x-8) \\ =5[5x(x-2)+4(x-2)] \\ =5(x-2)(5x+4)
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