factorise by splitting the middle term factorise x^2-root5x-10
Answers
Answered by
1
Answer:
Step-by-step explanation:
X^2-√5 X-10
X^2 - 2√5X + √5X - 10
X(X - 2√5) + √5(X - 2√5)
(X + √5) (X - 2√5)
Answered by
1
Answer:
x = 5√5 , -4√5
Step-by-step explanation:
splitting the middle term , we get ,
x² - √5x -10 = x² -(5√5-4√5)x - 10
= x²-5√5x+4√5x-10
=>x(x-5√5) + 4√5(x-5√5) = 0
=>(x-5√5) (x+4√5) = 0
=> x = 5√5, -4√5
good luck.
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