Question

(450-30)²-(12)²=(?)²​

Answer 1

Step-by-step explanation:

$a ^2 - b ^2 =( a + b)(a - b)$

so

(450-30+12)(450-30-12)=432×408

=176256

Hope i was able to help you!

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Answer 2

(450-30)²-(12)²

=(420)²-(12)²

=(420+12)(420-12)

=432×408

=(2×2×2×2×3×3×3)×(2×2×2×3×17)

=(2×2×3)²×3×(2)²×2×3×17

=(2×2×3×2)²×3×2×3×17

=(2×2×3×2×3)²×34

=(72√34)²

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