Hi!!
Could u please help me with this qs?
Factorize: (8-b)(3+b)
And please mention the property or identity to be used too

24 + 5b -b²

Step-by-step explanation:

i am not sure what is meant by propert/ identity but

8 x 3 = 24

8 x b = 8b

(-b) x 3 = (-3b)

(-b) x b = (-b)²

24 + 8b + (-3b) + (-b)²

24 + 5b - b²

step-by-step explanation:

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: