1. If $$x(2x+3)=90$$ and $$7y^{\frac{-1}{2}}+2y^{\frac{-1}{2}}=y^{\frac{1}{2}}$$ (x and y are positive numbers), then what is the value of $$x^2 + y^2$$ ?
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use