Which of the following equations has roots 3 and -10 ?
x² - 7x - 30 = 0
x² - 7x + 30 =0
x² + 7x + 30 =0
x² + 7x - 30 =0
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Answer:
x² + 7x - 30 =0
Step-by-step explanation:
Ist root = 3
2nd root = -10
Sum of roots , S = -7
product of roots, P = -30
equation = x^2 - Sx + P = 0
x^2 + 7x - 30 = 0
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