Question Function Evaluate the derivative Find the domain Find the t-intercept/zero Load more x′(t)=56t3 Evaluate x(t)=21t2×4t2×7Simplify More Steps Evaluate 21t2×4t2×7Multiply the terms More Steps Evaluate 21×4×7Multiply the terms 2×7Multiply the numbers 14 14t2×t2Multiply the terms with the same base by adding their exponents 14t2+2Add the numbers 14t4 x(t)=14t4Take the derivative of both sides x′(t)=dtd(14t4)Use differentiation rule dxd(cf(x))=c×dxd(f(x)) x′(t)=14×dtd(t4)Use dxdxn=nxn−1 to find derivative x′(t)=14×4t3Solution x′(t)=56t3 Show Solution Graph