Fill in all of the blanks with the same number in order to make a true statement:
2 answers:
Hello:
x²+8x+16 = x²+2(4)(x)+4²
by identity :(a+b)² = a² +2ab +b²
a=x and b=4
x²+8x+16 = (x+4)²
4. (X+4)(X+4) x2+4x+4x+16
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