Question

(-2x+5y-3z)^2 solve by suitable identity​

Answer 1

Answer:

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(a+b+c)² = a² + b² + c² + 2(ab+bc+ca)

(-2x+5y-3z)² = (-2x)² + (5y)² + (-3z)² + 2[(-2x)(5y) + (5y)(-3z) + (-3z)(-2x)

(-2x+5y-3z)² = 4x² + 25y² + 9z² + 2[ -10xy -15yz + 6zx]

(-2x+5y-3z)² = 4x² + 25y² + 9z² -20xy - 30yz + 12zx

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Step-by-step explanation: