book Maths Puzzle Numerical Ability

I have an multiplication problem with a binomial.The problem is( 4x with a square root of two minus 3y)multiply it by itself

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book Other Question

What is 50% less thank 88?
My answer was 44. Is that right?
Thanks A line passes through the point (-1,3) has a slope of 2. Find another point on the line. This is a multiple choice A.(-3,2) B. (1,5) C. (0, 5) D.(1,4)