x+y=91
2x+4y=338
$\sqrt{18}$ × $\sqrt{12}$
(10x+4)(3x^2)
$\sqrt{20}$ × $\sqrt{45}$
(3a+4b)(3a-4b)
$\sqrt{3×}$ $\sqrt{19}$
5400×100÷28600
1/5(10x+25y)+1/4(8x-12y)
SCENARIO QUESTIONS ON LOGARITHM
(4x-5)^2
