Grade 8 - Mathematics 7.51 Polynomials Review Test

Q 1: If a+b+c = 6 and a^{2}+b^{2}+c^{2} = 20, find the value of ab+bc+ca. 2 4 8 6

Q 2: Divide (x^{2}+7x+2) by (x+3). Quotient=(x-4) and Remainder=2 Quotient=(x+4) and Remainder=0 Quotient=(x-4) and Remainder=0 Quotient=(x+4) and Remainder=2

Q 3: Find the product of (2x+2y+2z) (4x^{2}+4y^{2}+4z^{2}-4xy-4yz-4xz). 8x^{3}+8y^{3}+z^{3}-24xyz 8x^{3}+8y^{3}+z^{3}-12xyz None of these 8x^{3}+8y^{3}-z^{3}-24xyz