Q. The equation (x3+y)⋅x5=x20 is true for all values of x. What is the value of y ?
Given Equation: We are given the equation:x(3+y)⋅x5=x20We need to find the value of y.According to the properties of exponents, when we multiply two exponents with the same base, we add the exponents.So, we can rewrite the left side of the equation as:x(3+y+5)=x20
Rewriting with Exponents: Now we simplify the exponent on the left side by adding the constants:3+5=8So the equation becomes:x(y+8)=x20
Simplify Exponents: Since the bases are the same and the equation holds for all values of x, we can equate the exponents: y+8=20
Solve for y: Now we solve for y by subtracting 8 from both sides of the equation:y=20−8y=12
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