Learning Task 3. Solve for the variable of the following quadratic equations
A. by extracting square roots.
1. x2 = 169
4. (x - 2)2 = 16
5. 2(t - 3)2 - 72 = 0
2. 9b2 = 25
3. (3y - 1)2 = 0
by factoring
1. x2 + 7x = 0
3. x2 + 5x - 14 = 0
2. m2 + 8m = -16
4. 2y2 +8y - 10= 0
by completing the square.
1. x2 + 5x + 6= 0
2. x2 + 2x = 8
3. 2x2 + 2x = 24
A. by extracting square roots.
1. x2 = 169
4. (x - 2)2 = 16
5. 2(t - 3)2 - 72 = 0
2. 9b2 = 25
3. (3y - 1)2 = 0
by factoring
1. x2 + 7x = 0
3. x2 + 5x - 14 = 0
2. m2 + 8m = -16
4. 2y2 +8y - 10= 0
by completing the square.
1. x2 + 5x + 6= 0
2. x2 + 2x = 8
3. 2x2 + 2x = 24
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Answer:
1. x= 13
4. x = 6
2. b = 5/3
5. t = 9
3. y = 0, 1/3
B.
1. x = -7, 0
3. x = -7, 2
2. m= -4
4. y = -5, 1
C.
1. x = -5, 1
2. x = -4, 2
3. x = -3,-2
D.
1. x = -7, 2
2. x = -5, 1
3. x = -9/2, 3
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