Transcription of Solving Quadratic Equations: Square Root Law
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Solving Quadratic Equations: Square Root Law
Elementary Algebra SkillSolving Quadratic equations : Square root LawSolve each equation by taking Square ) r 2 = 962) x 2 = 73) x 2 = 294) r 2 = 785) b 2 = 346) x 2 = 07) a 2 + 1 = 28) n 2 4 = 779) m 2 + 7 = 610) x 2 1 = 8011) 4 x 2 6 = 7412) 3 m 2 + 7 = 30113) 7 x 2 6 = 5714) 10 x 2 + 9 = 49915) ( p 4)2 = 1616) ( 2 k 1)2 = 917) ( 6 x + 2)2 + 4 = 2818) 10 ( x 7)2 = 44019) 9 ( 2 m 3)2 + 8 = 44920) 4 ( 6 x 1)2 5 = 223 Answers to Solving Quadratic equations : Square root Law1) { 4 6, 4 6}2) {7, 7}3) {29, 29}4) {78, 78}5) {34, 34}6) {0}7) {1, 1}8) {9, 9}9) No ) {9, 9}11) { 2 5, 2 5}12) { 7 2, 7 2}13) {3, 3}14) {7, 7}15) {0, 8}16) {2, 1}17) { 1 + 63, 1 63}18) { 7 + 2 11, 7 2 11}19) {5, 2}20) { 1 + 576, 1 576}
Elementary Algebra Skill Solving Quadratic Equations: Square Root Law Solve each equation by taking square roots. 1) r2 = 96 2) x2 = 7 3) x2 = 29 4) r2 = 78 5) b2 = 34 6) x2 = 0 7) a2 + 1 = 2 8) n2 − 4 = 77 9) m2 + 7 = 6 10) x2 − 1 = 80 11) 4x2 − 6 = 74 12) 3m2 + 7 = 301 13) 7x2 − 6 = 57 14) 10x2 + 9 = 499 15) (p − 4)2 = 16 16) (2k − 1)2 = 9
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