(25x2 - 16y2) = (5x + 4y) – 5(x – y + 1)
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i
Step-by-step explanation:
..(5x)2-(4x) 2=(5x+4y)-5(x-y+1)
5x +4y) 5x-4y =(5x+4y)-5(x-y+1)
5x-4y =-5x +5y-5"since 5x +1 is canclled"
10x -9y +5=0 factorize it
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