Q1) \(x^2 - 81=0\) [ \(x =9\) or \( -9 \) ]

Q1) \(x^2 -7x + 12\)=0 [
\(x = 3\) or \( 4\)]

Q1) \(x^2 = +x +12 \) [
\(x = 4\) or \(-3\)]

Q2) \(x^2 - 49=0\) [ \(x =7\) or \( -7 \) ]

Q2) \(x^2 + 5x -6\)=0 [
\(x = -6\) or \( 1\)]

Q2) \(x^2 = -7x -10 \) [
\(x = -5\) or \(-2\)]

Q3) \(x^2 - 1=0\) [ \(x =1\) or \( -1 \) ]

Q3) \(x^2 -3x -4\)=0 [
\(x = -1\) or \( 4\)]

Q3) \(x^2 = -5x -4 \) [
\(x = -1\) or \(-4\)]

Q4) \(x^2 - 32= 4\) [ \(x =6\) or \( -6\) ]

Q4) \(x^2 + 6x -40\)=0 [
\(x = 4\) or \( -10\)]

Q4) \(x^2 = +6x -8 \) [
\(x = 2\) or \(4\)]

Q5) \(x^2 - 9=0\) [ \(x =3\) or \( -3 \) ]

Q5) \(x^2 + 14x + 49\)=0 [
\(x = -7\) or \( -7\)]

Q5) \(x^2 = +6x -9 \) [
\(x = 3\) or \(3\)]

Q6) \(x^2 - 64=0\) [ \(x =8\) or \( -8 \) ]

Q6) \(x^2 + x -20\)=0 [
\(x = -5\) or \( 4\)]

Q6) \(x^2 = +2x +8 \) [
\(x = -2\) or \(4\)]

Q7) \(x^2 - 16=0\) [ \(x =4\) or \( -4 \) ]

Q7) \(x^2 + 15x + 54\)=0 [
\(x = -6\) or \( -9\)]

Q7) \(x^2 = +x +6 \) [
\(x = 3\) or \(-2\)]

Q8) \(x^2 - 11= -2\) [ \(x =3\) or \( -3\) ]

Q8) \(x^2 + 10x + 24\)=0 [
\(x = -4\) or \( -6\)]

Q8) \(x^2 = -10x -25 \) [
\(x = -5\) or \(-5\)]

Q9) \(x^2 - 40= -4\) [ \(x =6\) or \( -6\) ]

Q9) \(x^2 -2x -8\)=0 [
\(x = -2\) or \( 4\)]

Q9) \(x^2 = -6x -5 \) [
\(x = -1\) or \(-5\)]

Q10) \(x^2 - 15= 10\) [ \(x =5\) or \( -5\) ]

Q10) \(x^2 + 17x + 70\)=0 [
\(x = -7\) or \( -10\)]

Q10) \(x^2 = +7x -12 \) [
\(x = 4\) or \(3\)]