a ^5 x a ^2 without exponents

When we multiply the same variable or number, we add exponents, so we have:
a^(5 + 2)
a^7

To write a variable raised to an exponent without exponents, we break it up. The formula to do this is:
a^n = a times itself n times

a^7 = a * a * a * a * a * a * a

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