If (x² + 3x + 5)(x² - 3x + 5) = m² - n², then m =
(A) x² - 3x
(B) 3x
(C) x² + 5
(D) none
hehehek:
what type of math is this
Class IX Chapter 2 Polynomials.
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(x² + 3x + 5)(x² - 3x + 5) =
m² - n²=>((x² + 5 )+ 3x)((x² + 5) + 3x)=m² - n²=>(x² + 5 )² - (3x)²=m² - n² now, m²=(x² + 5 )² =>m=(x² + 5)(C)
m² - n²=>((x² + 5 )+ 3x)((x² + 5) + 3x)=m² - n²=>(x² + 5 )² - (3x)²=m² - n² now, m²=(x² + 5 )² =>m=(x² + 5)(C)
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