Answers

2015-07-06T22:10:02+08:00
X²-4x-21=0
(x-7)(x+3)

24x²+x-10=0
(3x+2)(8x-5)
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2015-07-06T22:15:36+08:00
X²-4x-21=0 (i apply ko sya in quadratic formula)
a=1 b=-4 c=21

answer is X₁=7 ; X₂= -3

24²+x-10=0(i apply ko sya sa quadratic formula)

answer is X₁=5/8 ; X₂= -2/3

ps: sorry walang solution kasi ang taas ng solution ko kasi..lol

kung sa factoring naman:
x²-4x-21=0 
(x-7)(x+3) 

24x²+x-10=0 
(3x+2)(8x-5)

di mo kasi nilagyan kung anong formula ang gagamitin.. :(

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