Question

completing square method x square - 3 x minus 4​

Answer 1

Answer:

Maine x square plus 3x -4 liya hai

Step-by-step explanation:

x=1 , -4

Take half of the coefficient of x, that would be 32in this case. Square this number and add it and subtract it as shown below.

x2 +3x + 94 -94-4=0

(x+32)2= 254. Take square root of both sides to have x+32 = 52 or −52

x+32 = 52 would give x= 52 -32 = 1 and

X+32 = −52 would give x= −52 −32 = -4