Question

hiii answer this really i will thanks ur 15 ans​

Answer 1

Answer:

I) 1+3+5+7+9+11+13 = 49

ii) -4p⁴q⁴

iii) x²+y²-z²+2xy+2xz

iv) -22/15

v) 2025

Step-by-step explanation:

1st and 2nd are very easy, so not explaining that one.

iii) (x+y+z)(x+y-z) = x²+xy+xz+y²+xy+y²-yz+xz+yz-z²

= x²+y²-z²+2xy+2xz (+yz-yz=0)

iv) x/2 = 4/15-1

x/2 = (4-15)/15

x = -11/5 × 2 = -22/15

v) 45×45 = 2025

Answer 2

Answer:

Here is your solution

Step-by-step explanation:

Thank You