Makakuha ng maaasahan at pangkomunidad na mga sagot sa IDNStudy.com. Tuklasin ang malawak na hanay ng mga paksa at makahanap ng maaasahang sagot mula sa mga bihasang miyembro ng aming komunidad.

What is the answer of this x2+3x-4

Sagot :

x squared + 3x-4 =0
x squared +3x = 4
squareroot of x squared+3x = squareroot of 4
x+3x = 2
x = 2-3x
x= -1
x2+3x-4=0
(x)2+3(x)=4
2x+3x=4
5x/5=4/5 :divide five on both sides and we can get.....
x=4/5

substitute x to the equation....
x2+3x-4
(4/5)2+3(4/5)-4
8/5+12/5-4
10/5-4
2-4
-2 is the answer for the equation x2+3x-4