Question

Simplify :

(i) 7x – 8y + 9z + 3x + 7y – 8z

(ii) (36x2

– 9m2+n2

) – (9x2+8m2+n2

)​

Answer 1

Step-by-step explanation:

Observations:

Triangle

Measure of Segments of Respective sides

Ratio of Segments

ABC

AP

PB

ΑΟ

QC

АО

ОС

AQ,

Q,C

ABC

AP

PB

AP

P,B

АР,

PB

aine paralle

AQ,

Q,C

DEF

DEF

ANN

EFG

Suas

EFG

GHI

GHI

POR

*

PQR