Question:
Solve the equation 2x2−5x+3=0 by the method of completing square.
Answer:
We have,
2x2−5x+3=0
⇒x2−25x+23=0 (Dividing throughough by 2)
⇒x2−25x=−23 (Shifting the constant term on RHS)
⇒x2−2(45)x+(45)2=(45)2−23 (Adding (21Coeff.ofx)2 onboth sides)
⇒(x−45)2=1625−23⇒(x−45)2=16
8q² + 4qm + 6q + 3m
4q(2q) + 4q(m) + 3(2q) + 3(m)
4q(2q + m) + 3(2q + m)
(4q + 3)(2q + m)
- 16:10
- 24:15
- 40:25
8:5 is just a simplier version of these other ratios
1) C. 100
a pentagon has 540 degrees
130 + 130 + 90 + 90 + x = 540
440 + x = 540
x = 100
2) C. 169
a hexagon has 720 degrees
151 + 135 + 115 + 75 + 75 + x = 720
551 + x = 720
x =169
