x *x +8x -10 factor is it plzz
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hi.. a very easy question.. Just use the knowledge of quadratic formula..
Step-by-step explanation:
x²+8x-10
now using quadratic formula where a=1 ,b=8 ,c = -10
b²-4ac=D
64+40 = D [ putting the values of a, b ,c]
104 > 0
the roots of this equation is real as they are D > 0
therefore, the roots are gven by,
x = -b±√D/2a
x= (-8 + 2√26)/2 [ √102=√4×26=2√26]
x= -4 + √26 [taking 2 as common]
and when √D is -ve
x = (-8 - 2√26)/2
x = -4 - √26
therefore the factors are x= -4 + √26 & -4 - √26
Hope you understand...
The point to be noted is that i have used quadratic formula because splitting up of middle term was not possible .
Please mark my answer as brainliest.
faraanahmedhashmi:
please mark as brainliest
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