Answer:
- 4x + 4
Step-by-step explanation:
(x-2) × (x-2)
(x × x) + (x × -2) + (-2 × x) + (-2 × -2)
() + (-2x) + (-2x) + (4)
- 2x - 2x + 4
- 4x + 4
Answer:
i believe it -140
Step-by-step explanation:
Answer
Find out the value of x .
To proof
SAS congurence property
In this property two sides and one angle of the two triangles are equal.
in the Δ ADC and ΔBDC
(1) CD = CD (common side of both the triangle)
(2) ∠CDA = ∠ CDB = 90 °
( ∠CDA +∠ CDB = 180 ° (Linear pair)
as given in the diagram
∠CDA = 90°
∠ CDB = 180 ° - 90°
∠ CDB = 90°)
(3) AD = DB (as shown in the diagram)
Δ ADC ≅ ΔBDC
by using the SAS congurence property .
AC = BC
(Corresponding sides of the congurent triangle)
As given
the length of AC is 2x and the length of BC is 3x - 5 .
2x = 3x - 5
3x -2x =5
x = 5
The value of x is 5 .
Hence proved
Answer: 4.5 (after is the pi sign)
Step-by-step explanation: i got it right on khan academy so
