Question

x²-16x²
solve this question​

Answer 1

Answer:

15x^2

Step-by-step explanation:

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Answer 2

Answer:

x^2-(4x)^2

A^2-B^2=(a+b)(a-b)

(x+4x)(x-4x)

5x=0;-3x=0

x=0;x=0

without formula,the answer may be 15x^2