2u-5v=-19 and uv=-6 find 4u^2+25v^2
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Answer:
Step-by-step explanation:
(2u-5v)^2 = 4u^2+25v^2 - 20uv
4u^2+25v^2= (2u-5v)^2 + 20uv
(-19)^2 + 20(-6)
361-120 = 241.
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