Find the solutions of each of the following quadratic equations by completing the square. Answer the questions that follow.
1. x² - 2x = 3
2. s² + 4s - 21 = 0
3. t² + 10t + 9 = 0
4. x² + 14x = 32
5. r² - 10r = -17
6. 4x² - 32x = -28
7. x² - 5x - 6 = 0
8. m² + 7m - 51/4 = 0
9. r² + 4r = -1
10. w² + 6w - 11 = 0
Take your time ;)
1. x² - 2x = 3
2. s² + 4s - 21 = 0
3. t² + 10t + 9 = 0
4. x² + 14x = 32
5. r² - 10r = -17
6. 4x² - 32x = -28
7. x² - 5x - 6 = 0
8. m² + 7m - 51/4 = 0
9. r² + 4r = -1
10. w² + 6w - 11 = 0
Take your time ;)
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my answer
1.x²-2x=3
solution:
x²-2x-3=0
(x+1) (x+(-3))
x+1=0 x+-3=0
x=-1 x=3
checking of (-1)
x²-2x=3
(-1)²-2(-1)=3
1+3=3
3=3 or 3-3=0
Yun lng Muna