exam Maths Puzzle Numerical Ability

Need help with question #14. I need to solve for the roots of each quadratic equation using the factoring method, but I need to place the equation in standrard form before factoring. Thanks so much in advance for time and help. =)
x^2+3x-40= 0

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exam Other Question

are equations are like this 13.7b-6.5=-2.3b+8.3 and i dont understand how to do these kind of problems. also we have some fractions like this 3/2y-y=4+1/2y and some parenthisis lik Could someone please help me. I need to graph the linear inequality.
x+5y is equal to or greater than -1. Thanks for any help!