unit 5: readiness assessment\nmultiply $(x - 4)^2$\na $x^2 - 4x - 16$\nb $x^2 - 4x + 16$\nc $x^2 - 8x…
unit 5: readiness assessment\nmultiply $(x - 4)^2$\na $x^2 - 4x - 16$\nb $x^2 - 4x + 16$\nc $x^2 - 8x - 16$\nd $x^2 - 8x + 16$
Answer
Explanation:
Step1: Expand using formula
Use the formula ((a - b)^2=a^2-2ab + b^2). Here (a = x) and (b = 4). ((x - 4)^2=x^2-2\times x\times4+4^2)
Step2: Simplify the expression
Calculate (2\times x\times4 = 8x) and (4^2=16). So, (x^2-2\times x\times4 + 4^2=x^2-8x + 16)
Answer:
D. (x^{2}-8x + 16)