1. Factor by grouping12x^3-20x^2+21x-35=2.Factor check by multiplying7x^6y^4+63x

1. Factor by grouping12x^3-20x^2+21x-35=2.Factor check by multiplying7x^6y^4+63x^4y^3+28y=3.Factor by groupingx^3+7x^2-7x-49=4.Factor the trinomialb^2-3bf-40f^2=5.Factor20a^2+11a-3=6.Factor the trinomial completely20c^2-11c-37.Factor Note the middle term has already been splitv^2+2v+7v+14=8.Factor by grouping4b^2+9b-28=9.Factor by grouping10a^2-19a-15=10.Factor by grouping7s^2-13s-2=11.Factor completely9x^2+21rd+10d^212.Factors^2-8s+16=13.Factor completely s^2-54s+243=14.Factorb^2-64=15. Factor completely v^2-d^216.Factor25s-36s^317.Factor completely (0.64y^2-0.0025)=18.Factor completely 4r^4-1024=19.Solve using the principle of zero productsw(w+3)=320.Solve using the principle of zero products(7w+4)(3w-9)=0The solution is w=21.Solvev^2+12v+32=0The solution is v=22.Solvea^2-4a=0 The solution is a=23.Solvex^2+2x-15=0The solutions are24.Express using a positive exponent___1___ k-225.Simplify the expressions(8^2)826.Multiply(x+2)(x+5)27.Collect like terms9x^3+7x^3+5=28.Solvev^2+2v-8=0The solution to v=29.Add(1+6x+5x^2+6x^3)+(6-6x+5x^2-6x^3)30.Divide and check45x^5-25x^3+25x/5×31.Multiply and simplify(3g)^4*(3g)^732.Solve11a+a^2+18=0The solution a=33.Subtract(5a^3+5b^3)-(2a^3+2a^2b-4ab^2+5b^3)34.Divide16x^3-24x^2-52x-18/4x+235.Multiply(7t-2)(7+t)36.Divide and check40x^4y^2/5x^8y^237.Factort^2-2t-63=38.Multiply(4x^4)(6x^5)39.Divide and simplify7^13/7^640.Factor Check by multiplyingx^9+5x^841.Multiply(2x^4+6)(2x^4-6)42.find the greatest common factor-x^8-3x^3-6x^543.Add(r-9s+5)+(3r-8s)+(s+5)44.Multiply(y^2-6)(6y^2-3y+3)45.Factor completelyr^2+100-20r46.convert to decimal10^-247.Evaluate k^3 when k=5