11-03-2021
Mathematics

contestada

If a+b=8 and b-a= -5 then a^2 - b^2=

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glowup2005 glowup2005

11-03-2021

Answer:

sorry if i am wrong but i think it is 40

Step-by-step explanation:

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W+2x+2y+z=-2 W+3x-2y-z=-6 -2w-x+3y+3z=6 W+4x+y-2z=-14