Question

Tick the quadratic expression in one variable. 1) 5x square plus 2x plus 21. 2) actually square plus b x plus c. 3) 3x square plus 2x1/2 plus 21. 4) 89x 3 plus 2x square plus 21. 5) 750x square plus 21​

Answer 1

Answer:

root5 plus 3 whole square is equal to s plus b root5 find a and b

Step-by-step explanation:

Tick the quadratic expression in one variable. 1) 5x square plus 2x plus 21. 2) actually square plus b x plus c. 3) 3x square plus 2x1/2 plus 21. 4) 89x 3 plus 2x square plus 21. 5) 750x square plus 21