Lúc 7 giờ , xe đạp đi từ A với vận tốc 10km/h. Lúc 8h30,xe máy từ A đuổi theo với vận tốc 30km/h. Hỏi sau bao lâu kể từ khi xe đạp xuất phát hai xe gặp nhau lúc mấy giờ?

(x+3)(x+7)

step-by-step explanation:

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!

the opening of this porabola is facing up

step-by-step explanation: