whta us this? 2x²+7x+3
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2x^2+7x+3
2x^2+6x+x+3
2x(x+3)+1(x+3)
(x + 3) ; (2x+1)
I hope helping me
Answered by
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Answer:
x = -1/2, -3
Step-by-step explanation:
2x^2 + 7x + 3 = 0 (it is a quadratic equation)
while find x, we must split 7x.
before that, we must multiply 2 and 3.
2x3 = 6. to split 7x, we must find the possible multiples of 6.
6= 2x3 or 1x6
here we notice that 1 + 6 = 7
therefore,
2x^2 + 1x + 6x + 3= 0
x( 2x + 1 ) + 3( 2x + 1 ) = 0
(x + 3) ( 2x + 1) = 0
therefore,
x + 3 = 0
x = -3
2x + 1 = 0
x = -1/2
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