5x^2 + 16x + 3 = 0 factorise it by factorisation method
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3
5x^2+15x+x+3
5x(x+3)+1(x+3)
(x+3)(5x+1)
i hope it will help you
5x(x+3)+1(x+3)
(x+3)(5x+1)
i hope it will help you
Answered by
6
5×^2 + 16x + 3 = 0
5×^2 + 15x + 1x + 3 = 0
5x ( x+3) +1 (x+3) =0
(5x+1) (x+3) =0
5x+1 =0, x+3 =0
5x = -1 , x = -3
x= -1/5
it's zeros also
5×^2 + 15x + 1x + 3 = 0
5x ( x+3) +1 (x+3) =0
(5x+1) (x+3) =0
5x+1 =0, x+3 =0
5x = -1 , x = -3
x= -1/5
it's zeros also
chauhandivya489:
But I have an doubt that 15+1 = 16 that's OK but 15*1 is not equal to 3 and in factorisation method this is a condition to solve equation....
hey bro you know its not alone one 5 which is infront of x^2 is also multiplied by 3
if you not satisfied multiply (x+3) by (5x+1) u will get answer which is equal question
is your doubt cleared
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