1.(х+4)^2=x(x+3) 2.10-x(5-(6+x))=x(x+3)-4x

Question

1.(х+4)^2=x(x+3)
2.10-x(5-(6+x))=x(x+3)-4x

Answer 1

1. x^2+8x+16=x^2+3x
    x^2+8x+16-x^2-3x=0
    5x+16=0
    x=16/5
    x=3,2

Comments

2. 10-5x+6x+x^2-x^2-3x+4x=0

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2x+10=0

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x=10/2; х=5