document.write( "Question 196189: Solve the equation by using the square root property. Express any complex numbers using notation.\r
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\n" ); document.write( "\n" ); document.write( "(2x+5)^2=49 \n" ); document.write( "
Algebra.Com's Answer #147069 by RAY100(1637)\"\" \"About 
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(2x +5)^2 = 49
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\n" ); document.write( "square root of both sides
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\n" ); document.write( "(2x+5) = +/- 7
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\n" ); document.write( "(1) 2x+5 = +7
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\n" ); document.write( "2x = 2
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\n" ); document.write( "x=1
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\n" ); document.write( "(2) 2x +5 = -7
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\n" ); document.write( "2x = -12
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\n" ); document.write( "x=-6
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\n" ); document.write( "x=1,,, (2(1) +5)^2 = 7^2 =49,,,,ok
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\n" ); document.write( "x= -6,,,(2(-6) +5)^2 = (-12 +5)^2 = (-7)^2 = 49,,,,ok
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