for what value of x between − 9 and 9 , inclusive , is the value of x ^ 2 − 10 x + 16 the greatest ?
"we can see from the statement that two terms containing x , x ^ 2 will always be positive and - 10 x will be positive if x is - ive . . so the equation will have greatest value if x is - ive , and lower the value of x , greater is the equation . so - 9 will give the greatest value . . ans a"
subtract(add(power(negate(9), 2), 16), multiply(10, negate(9)))