Question

plllleeesssseee help me to solve all of these​

Answer 1

hey mate here your answer goes
question number 15-
factories
•4x2+9y2+16z2+12xy-24yz-16zx
(2x)^2+(3y)^2+(-4z)^2+2×2x×3y+2(3y)(-4z)+2(-4z)(2x)
so the answer will be (2x-4z+3y)(2x-4z+3y)
•8a3+b3+12a2b+6ab2
(2a)3+(b)3+3(2a)^2(b)+3(2a)(b)^2
(2a+b) (2a+b) (2a+b) your answer

question 16-
find different solution of 2x+y=6
put y=2
2x+(2)=6
2x=4
x=2
(2,2)

put y=-2
2x+(-2)=6
2x=8
x=4
4,(-2)

put y=-4
2x+(-4)=6
2x=10
x=5
5,(-4)

question number 17
AB is parallel to CD
AE is parallel to FC
AB=CD
1/2AB=1/2CD
AE=FC
Therefore AEFC is a parallogram
in triangle DCQ
F is the mid point CD
FP is parallel to CQ
p it the mid point of DQ (converse of mid point theorem)
DP=PQ. (I)
IN triangle APB
E is the mid point of AB
AP is parallel to EQ
Q is the mid point of PB(same reason)
PQ=BQ. (II)
from (I) AND (II)
DP=PQ=BQ
hence proved
please mark it as brainliest