72*12 = 2*2*2*2*2*3*3*3 = 2^5*3^3
X^2+x-30 -- find two numbers that add to one and multiply to -30, which would be 6 and -5. so now you have x^2+6x-5x-30. factor out x and 5 to get x(x+6)-5(x+6). so you get (x+6)*(x-5)
Answer: 8
Step-by-step explanation: numbers are 5 and 3.
5²·3 =75
Apply the negative exponent rule, so move the expression to the denominator to make the exponents positive.
Your answer is:
1
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r^7 + s^12
The answer would be D Because one side is 18 and another is 26 and 18 times 26 is 468.
