(x+3) ²=100 solve the quadratic equation
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Answered by
2
Answer:
(x + 3)² = 100
x² + 6x + 9 = 100
x² + 6x + 9 - 100 = 0
x² + 6x - 91 = 0
Answered by
5
Step-by-step explanation:
=> (x+3)²=100
=> (x+3)(x+3)=100
=> x²+3x+3x+9=100
=> x²+6x+9=100
=> x²+6x=100-9
=> x²+6x=91
=> x²+6x-91=0
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