Question

write x2 + 8x - 9 in the form (x + k)2 + h

Answer 1

Answer:

${(x + 4)}^{2} + ( - 5)$

Step-by-step explanation:

${x}^{2} + 8x - 9 \\ {x}^{2} + 2 \times 4x + (16 - 5) \\ {x}^{2} + 2 \times 4x + {4}^{2} - 5 \\ {(x + 4)}^{2} + ( - 5)$

Answer 2

Answer: (x+4)^2 +(-25)

Step-by-step explanation:

x^2 - 2(x)(4) +(4)^2 -4^2 -9

=(x+4)^2 -16-99

=(x+4)^2 -25(