X square + 7 x + 10 = 20 if one of the root is -2 then find the other root
Answers
Answered by
0
Step-by-step explanation:
A+B=–7
GIVEN A= –2
B= –7–A
= –7+2
=–5
ANOTHER ROOT = –5
Answered by
1
Step-by-step explanation:
x² + 7x + 10 = 20
x² + 7x - 10 = 0
x² - (A+B)x + AB = 0 Se Comparison karne per
-A + B = 7
A + B = -7
-2 + B = -7
B = -5
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