Which of the following is equivalent to 7a3 + 2a2 - 9.2a - - (a3 - 5a2 + 10a + )?A6a3 + 7a2 - 2a - B6a3 + 7a2 - 19.2a - C6a3 + 7a2 - 19.2a + D6a3 + 5a2 - 19.2a -

15a2 − 3a = 3 − 7a

Simplify the following expression.‐3 + 7(a – 3b – 1) – 4(10 – a + 2b)11a - 11b - 4411a - 29b - 503a - 13b - 506a - b - 44

Select the two equivalent expressions in the list below:2a + 6a2 + 66 + a + a8a

Which expression is equivalent to 7(6r)?r+137(r+6)6r+7(6r)7Submit

a) b) none of thesec) d)25a −2 4b2(a + b)2a −2 b2(a − b)23. (5-p)(5-p) is of the forma) b) none of thesec) d)(a + b)2(a − b)(a + b) (a − b)24. is of the forma) none of these b)c) d)(3x + 5y)(3x + 5y)3x −2 5y2(3x − 5y)2(3x + 5y)25. is of the forma) b)c) d) none of these(a − 5)(2a − 9)(x + a)(x + b) (a + b)(a − b)(a + b)26. is of the forma) none of these b)c) d)(4 − a)(4 − b )(a − b)2(a + b)2(x + a)(x + b)7. is of the forma) b)c) d)8a +3 64b3(a + b)3a +3 b3a −3 b3(a − b)38. can be calculated easily usinga) b)c) d) none of these2253(a + b)2(a + b)3a +3 b39. is the expansion ofa) b)c) none of these d)(a + 2ab + b2 2)(a + b)2(a + b)3(a − b)210. is the expansion ofa) b)c) d)(a − b) +3 3ab (a − b)(a + b3 3) (a − b)3(a − b3 3) (a + b)311. (x - y ) × (x + y ) = ______a) 2x + 2y b) 2xc) x + y d) x - y2 2 2 22 2 44 4 4 412. (p - q ) =a) p +2p q +q b) p -2p q +qc) p -2p q +q2 2 24 2 2 4 2 2 2 24 2 2 413. (5x+y)(-5x+y)a) 25x + 10xy + y b) -y - 25xc) 25x - y d) y - 25x2 2 2 22 2 2 214.a) b)c)(2x + 5) −2(2x − 5)240 + x 40 − x40x15. 105 95 =a) 9476 b) 9975c) 9875