Transcription of Solving Quadratic Equations by Factoring
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Solving Quadratic Equations by Factoring
Elementary Algebra SkillSolving Quadratic Equations by FactoringSolve each equation by ) x 2 9 x + 18 = 02) x 2 + 5 x + 4 = 03) n 2 64 = 04) b 2 + 5 b = 05) 35 n 2 + 22 n + 3 = 06) 15 b 2 + 4 b 4 = 07) 7 p 2 38 p 24 = 08) 3 x 2 + 14 x 49 = 09) 3 k 2 18 k 21 = 010) 6 k 2 42 k + 72 = 011) x 2 = 11 x 2812) k 2 + 15 k = 5613) 3 m 2 = 16 m 2114) 8 x 2 = 30 + 43 x 15) x 2 + 17 x + 49 = 3 x 16) m 2 = 2 m 17) 2 k 2 14 = 3 k 18) 3 v 2 + 36 v + 49 = 8 v 19) 10 x 2 26 x = 1220) 15 p 2 + 80 = 80 p Answers to Solving Quadratic Equations by Factoring1) {3, 6}2) { 1, 4}3) {8, 8}4) { 5, 0}5) { 37, 15}6) { 23, 25}7) { 47, 6}8) { 73, 7}9) {7, 1}10) {3, 4}11) {7, 4}12) { 8, 7}13) { 73, 3}14) { 58, 6}15) { 7}16) {2, 0}17) { 72, 2}18) { 73, 7}19) { 35, 2}20) { 43, 4}
Solving Quadratic Equations by Factoring Solve each equation by factoring. 1) x2 − 9x + 18 = 0 2) x2 + 5x + 4 = 0 3) n2 − 64 = 0 4) b2 + 5b = 0 5) 35n2 + 22n + 3 = 0 6) 15b2 + 4b − 4 = 0 7) 7p2 − 38p − 24 = 0 8) 3x2 + 14x − 49 = 0 9) 3k2 − 18k − 21 = 0 10) 6k2 − 42k + 72 = 0
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