Question

(x+4)(x-3)=15
Solve the equation by completing square method

Answer 1

Answer:

x(x+4)-3(x+4)=15

=x(square) + 4x -3x-12 =15

=x(square)+x-12=15

=x(cube)=15+12

= 3√= 27

=3√=3×3×3

= 3

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