Question

Solve the quadratic equation x ^2- 3(x + 3) = 0. Give
your answer correct to two significant figures.​

Answer 1

Answer:

Given: x2−3(x+3)=0

x2−3x−9=0

Comparing x2−3x−9 with ax2+bx+c=0, we get

a=1,b=−3,c=−9

We know, x=2a−b±b2−4ac

=2×1−(−3)±(−3)2−4×1×(−9)$

=23±9+36=23±45

=23±35=23±3×2.236

x=23±6.708

x=23+6.708 and 

Step-by-step explanation:

this is you answer this may help you a lot ♥️♥️♥️