expand using suitable identity
(-2x+5y-3z)^2
Answers
Answered by
3
Step-by-step explanation:
4x^2 + 25y^2 + 9z2 - 2xy - 2yz + 2xz
Answered by
12
ANSWER:- 4x² + 25y² + 9z² - 20xy - 30yz + 12zx
Step-by-step explanation:
=(-2x+5y-3z)²
= (-2x)²+(5y)²+(-3z)²+2.(-2x).(5y)+2.(5y).(-3z)+2.(-3z).(-2x) Using the formula, (a+b+c)²= a²+b²+c²+2.a.b + 2.b.c +2.c.a
= 4x² + 25y² + 9z² - 20xy - 30yz + 12zx
I think it would help you
THANK YOU !!!
Similar questions