middle term split of 21x2-8x-4=0
Answers
Answered by
26
Answer:
(3x - 2)(7x + 2)
Step-by-step explanation:
21x^2 - 8x - 4
= 21x^2x + 6x - 14x - 4
= 3x(7x + 2) - 2(7x + 2)
=(3x - 2)(7x + 2)
Hope I helped
UdayrajSinghNegi:
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Answered by
14
Answer:
Step-by-step explanation:
21x^2-8x-4=0
21x^2-14x+6x-4=0
7x (3x-2) +2(3x-2)
(7x+2) ( 3x-2)
7x+2=0 3x-2=0
7x= -2 3x=2
X= -2/7 x=2/3
Therefore the zeroes are -2/7 & 2/3
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