Question

4(x+5) square-(2x+1) square=3(x-5)+180



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Answer 1

Answer:

4(x²+25+50x) -(4x²+1+8x) =3(x-5) +180

using identity

4x²+100+200x) -(4x²+1+8x) =3x-15+180

4x²+100+200x-4x²-1-8x=3x-15+180

99+197x=3x-15+180

197x-3x=180-15-99

194x=66

x=2