Astudent uses the division shown to divide –3x4 15x3 – x 5 by x – 5, and concludes that x – 5 is not a factor of the polynomial. describe two errors the student made. is x – 5 a factor? explain.

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: