Find x:
x(x-7)+x-7=0
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⭐Answer:
x(x-7) +x-7=0
→ x²-7x+x-7=0
→ x²-6x-7=0
→ x²-7x+x-7=0
→ x(x-7) +1(x-7) =0
→ (x+1) (x-7) =0
→ (x+1) =0 OR (x-7) =0
→ x= -1 OR x= 7
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