Question

Find the square of a-4

1) a²-16

2) a²+16-8x

3) a²+16+8x

4) a²+16



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Answer 1

Answer:

a²+16-8a

Step-by-step explanation:

(a-4)² = a² - 2×a×4 + 4² ..(a-b)² = a²+2ab+b²

= a²-8a+16

Answer 2

Answer:

a^2+16 this is the right answer