3 years ago

Select an expression that is equivalent to (m^2-25)

Mathematics

1 answer:

Veronika [31]3 years ago

4 0

Hello
by identity : a²-b² = (a-b)(a+b)
m²-25 = m²-5² (m-5)(m+5)

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5.b) If z^(1/2)=x^(1/2)+y^(1/2) , show that (x+y-z)^2=4xy

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Step-by-step explanation:

(x+y-z)²= 4xy
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