Original post by rimshs16
1). Express x^2+2x+7 in the form (x+p)^2+q
answer: (x+1)^2+8
2). Hence show that x^2+2x+7 is always positive.
can someone do question 2 step by step thank you
answer: (x+1)^2+8
2). Hence show that x^2+2x+7 is always positive.
can someone do question 2 step by step thank you
Squares are always greater than or equal to 0 and the +8 ensures it is positive
Original post by 123Master321
Squares are always greater than or equal to 0 and the +8 ensures it is positive
thank you
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